Top 12 Best Coilovers for 9th Gen Si That Boost Performance
Choosing the right suspension upgrades can be challenging, especially when aiming to improve handling and ride comfort for your 9th gen Honda Civic Si. The best coilovers for 9th gen Si offer a balanced solution for drivers who want enhanced performance without sacrificing everyday drivability.
Whether you use your car for daily driving or occasional spirited runs, the right coilovers can make a noticeable difference. This review will cover key features to look for, benefits of the leading coilover options, and how they perform on the road.
By the end, you’ll have a clearer idea of which coilovers suit your needs and why they stand out for this particular model.
Top Suspension Upgrades to Elevate Your 9th Gen Si’s Performance and Ride Quality
| Image | Product | Price |
|---|---|---|
Our Top Picks 1 ![]() | Raceland Classic Coilovers for Honda Civic Si 9th Gen | Check Price |
Our Top Picks 2 ![]() | FAPO 32-Way Mono-Tube Coilovers for 2012-2015 Honda Civic | Check Price |
Our Top Picks 3 ![]() | FAPO Coilovers 32-Way Damper for Honda Civic FG/FB 2012-2015 | Check Price |
1. Raceland Classic Coilovers for Honda Civic Si 9th Gen
Upgrade your 9th Gen Honda Civic Si with Raceland Classic Coilovers designed for superior handling and style. These coilovers offer adjustable height settings and enhanced spring rates, making your ride sportier and more responsive. A perfect balance between comfort and performance is achieved with precision engineering.
Manufactured in the USA, this coilover kit features spring rates tuned for the Civic Si model, improving cornering stability and grip without sacrificing daily comfort. The height adjustable range lets you lower your vehicle from 1 to 3 inches, enhancing its stance while maintaining drivability on city roads.
Enhanced spring and damping rates provide a firmer, more controlled ride than factory suspension, ideal for spirited driving and street performance.
Construction quality is robust, with a painted exterior that resists wear and supports longevity. Installation fits 2012-2013 Honda Civic Si (9th Gen.
) models precisely, ensuring seamless integration. These coilovers include a straightforward adjustment mechanism for easy ride height customization. Their design prioritizes everyday usability while making a noticeable difference in handling precision and responsiveness.
The included 30-day satisfaction guarantee allows confidence in the purchase, supporting hassle-free returns if expectations are not met.
Raceland’s attention to balanced ride quality means you’ll enjoy improved feedback through corners and reduced body roll. This setup is well suited for drivers seeking an affordable upgrade that doesn’t compromise comfort or street manners. Compared to standard coilovers in the same range, this kit offers a practical combination of performance, reliability, and ease of adjustment that benefits both casual drivers and those wanting enhanced control.
Compared to standard coilovers in the same range, this kit offers a practical combination of performance, reliability, and ease of adjustment that benefits both casual drivers and those wanting enhanced control.
Pros
- Height adjustable from 1 to 3 inches for personalized stance
- Enhanced spring and damping rates improve stability and grip
- Manufactured in the USA with durable painted finish
Cons
- Limited fitment primarily for 2012-2013 Civic Si (9th Gen.) models
Raceland Classic Coilovers provide a practical suspension upgrade for the 9th Gen Honda Civic Si, blending sportier handling with daily comfort. Their user-friendly adjustability and solid build make them a reliable choice for improving driving dynamics. Below is a clear specification overview to assist your evaluation.
Below is a clear specification overview to assist your evaluation.
Specification Details Compatible Models 2012+ Honda Civic 9th Gen, 2012-2013 Civic Si 9th Gen Spring Rates (Front) 300 lbs/in Spring Rates (Rear) 365 lbs/in Height Adjustment Range 1 to 3 inches lower than stock ride height Manufacturer Raceland USA Finish Painted exterior Part Number RA-SET-HC9(SI)
For drivers looking to enhance their 9th Gen Civic Si without sacrificing daily driving comfort, these coilovers offer an excellent balance. They stand out by providing easy customization and confident handling improvements.
Compared to other options in the segment, Raceland delivers solid performance and durable construction, making it a worthy suspension upgrade.
2. FAPO 32-Way Mono-Tube Coilovers for 2012-2015 Honda Civic

Experience precise handling and superior ride quality with the FAPO 32-Way Mono-Tube Coilovers specifically designed for 2012-2015 Honda Civic models. These coilovers deliver a custom-tuned suspension solution, blending comfort and performance seamlessly for daily driving and spirited track days alike.
Built to fit the 9th Generation Civic and Acura ILX perfectly, this set offers durability with forged chromoly steel sleeves and premium components. Whether lowering your ride height or enhancing cornering capability, this kit transforms driving dynamics without compromising reliability.
Engineered for both street use and aggressive driving, the coilovers feature a 32-click adjustable damping system. It allows fine-tuning from comfortable city cruising to sharp, track-ready responses in seconds. The oversized 45mm mono-tube shock body uses nitrogen gas to manage heat efficiently and maintain consistent performance.
The oversized 45mm mono-tube shock body uses nitrogen gas to manage heat efficiently and maintain consistent performance. Every component is designed with quality in mind, including Japanese NOK seals and premium German Fuchs shock oil. These ensure long-lasting smooth operation and prevent leaks under extreme conditions.
Installation is straightforward with direct bolt-on compatibility for various Civic and Acura ILX models. The aluminum pillow ball top mounts and adjustable camber plates improve steering precision and tire contact for better grip.
High-tensile springs provide firm body control and reduce roll during hard cornering. Adjust ride height between 1 to 3 inches for an aggressive stance and improved center of gravity, enhancing overall vehicle stability. Ideal for drivers seeking enhanced handling without sacrificing daily driving comfort.
Pros
- 32-way adjustable damping allows versatile suspension tuning
- Durable build with forged 4130 chromoly steel and high-quality seals
- Integrated camber plates and aluminum pillow ball mounts improve handling
Cons
- Designed specifically for lowering; does not maintain stock ride height
FAPO’s 32-Way Mono-Tube Coilovers offer a balanced blend of durability and performance for Honda Civic 9th Gen owners. This suspension kit enhances agility while providing the build quality needed for diverse driving conditions.
| Brand Name | FAPO |
|---|---|
| Model Number | PF002530-K1 |
| Applicable Vehicles | Honda Civic 9th Gen (2012-2015), Civic Si (2012-2015), Acura ILX (2016-2019) |
| Adjustability | 32-Level Damping, 1″ to 3″ Ride Height |
| Shock Type | Mono-Tube with Nitrogen Gas |
| Materials | Forged 4130 Chromoly Steel Sleeves, Aluminum Mounts |
| Additional Features | Japanese NOK Seals, German Fuchs Shock Oil, Adjustable Camber Plates |
| Components Included | 2 Front and 2 Rear Shock Absorbers |
The combination of high-quality materials and advanced design makes these coilovers a great upgrade for Civic drivers wanting tunable suspension. They provide noticeable improvements in steering feel and cornering grip, making everyday drives more engaging.
3. FAPO Coilovers 32-Way Damper for Honda Civic FG/FB 2012-2015

Upgrade your Honda Civic 9th Gen suspension with the FAPO Coilovers 32-Way Damper designed specifically for FG/FB models from 2012 to This coilover kit balances enhanced handling and ride comfort, making it a solid choice for drivers seeking precise control without sacrificing daily drivability.
These coilovers are tailored to meet varied driving conditions. Whether cruising city streets or tackling spirited driving, the adjustable damping control lets you fine-tune the suspension stiffness with ease for a personalized ride experience.
FAPO Coilovers offer a robust construction featuring a mono-tube design made from high-quality materials for better road feedback. The oversized shock body improves heat dissipation, ensuring consistent performance during extended drives or challenging road conditions.
An aluminum pillow ball top mount reduces weight and boosts steering precision while allowing camber adjustments. This enhances tire contact and cornering grip, giving greater control through turns.
Installation is straightforward, and included accessories help adjust the suspension effortlessly. This kit suits drivers looking to improve handling dynamics while maintaining comfort for daily use. It’s an excellent upgrade for those wanting enhanced vehicle responsiveness combined with versatile performance capabilities.
It’s an excellent upgrade for those wanting enhanced vehicle responsiveness combined with versatile performance capabilities.
Pros
- 32-level adjustable damping for tailored ride quality
- Lightweight aluminum pillow ball top mount improves steering response
- Mono-tube oversize shock body enhances heat dissipation and durability
Cons
- Limited compatibility outside Honda Civic 9th Gen FG/FB and select Acura ILX models
The FAPO Coilovers 32-Way Damper delivers a balanced upgrade for handling and comfort, ideal for 9th Gen Honda Civic drivers seeking customizable suspension settings. Their solid build and precise adjustability ensure reliable performance on various terrains.
| Specification | Details |
|---|---|
| Brand | FAPO RACING |
| Model Number | PF002530-41 |
| Compatible Models | Honda Civic 9th Gen FG/FB 2012-2015, Acura ILX 2016-2019 |
| Damping | 32-way adjustable |
| Shock Design | Mono-tube, oversized 2.08″ barrel body |
| Top Mount | Aluminum pillow ball with camber adjustment |
| Spring Rate | Front: 8 kg/mm (447 lbs/in); Rear: 10 kg/mm (559 lbs/in) |
| Spring Length | Front: 180mm (7.09″); Rear: 140mm (5.51″) |
| Included Components | 4-piece lowering kit with 2 wrenches |
Compared to similar coilover kits, the FAPO unit stands out for its fine damping adjustability and reinforced construction. It offers a reliable option for those who desire a sportier ride with the ability to tailor suspension behavior easily.
4. Rev9 R9-HPX-1134_1 Hyper-Street ONE Coilover Lowering Kit

Enhancing your 9th Gen Honda Civic Si’s suspension has never been easier with the Rev9 R9-HPX-1134_1 Hyper-Street ONE Coilover Lowering Kit. Designed to balance performance and comfort, it offers a refined driving experience for daily use and spirited drives alike.
Tailored specifically for the 2014 and 2015 Civic Si models, this coilover set allows for a customizable ride height drop between 25 to 25 inches. Its durable mono-tube shock design combined with upgraded spring rates ensures a reliable upgrade that delivers sharp control and a smooth feel on different road surfaces.
The Rev9 Hyper-Street ONE kit is built with a front spring rate of 8 kg/mm and a rear rate of 10 kg/mm. These specifications enhance stability during cornering and reduce body roll. Users can select from 16 damping levels to fine-tune ride firmness according to their preferences or driving conditions.
The front assembly features a standard pillow ball top mount for precise handling, while the rear allows reuse of the factory top mount for ease of installation.
This lowering kit is not aimed at extreme stance; rather, it delivers a balanced drop that improves aerodynamics and center of gravity. The metallic finish enhances corrosion resistance and adds aesthetic appeal. While the installation requires professional expertise due to the lack of instructions, it is a worthy upgrade for those seeking sportier suspension without compromising comfort.
While the installation requires professional expertise due to the lack of instructions, it is a worthy upgrade for those seeking sportier suspension without compromising comfort. Overall, the Rev9 Hyper-Street ONE offers great value for drivers focused on handling improvements and ride quality enhancements on compatible Civics.
Pros
- Adjustable damping with 16 settings for personalized performance
- Sport-tuned springs improve handling and reduce body roll
- Moderate lowering range from 1.25 to 2.25 inches for everyday usability
Cons
- Installation requires professional skills due to absence of instructions
The Rev9 Hyper-Street ONE Coilover Lowering Kit presents a thoughtful suspension upgrade for 9th Gen Honda Civic Si owners. It effectively balances sporty handling with ride comfort and offers adjustable options to match individual preferences. Suitable for drivers prioritizing both drivability and improved aesthetics on daily driven vehicles.
Suitable for drivers prioritizing both drivability and improved aesthetics on daily driven vehicles.
| Specification | Details |
|---|---|
| Manufacturer | Rev9 |
| Brand | Rev9 |
| Model | Hyper-Street ONE |
| Item Weight | 48 pounds |
| Package Dimensions | 32 x 19 x 9 inches |
| Model Number | HPX |
| Finish | Metallic |
| Part Number | R9-HPX-1134_1 |
| Spring Rate Front | 8 kg/mm (448 lbs/in) |
| Spring Rate Rear | 10 kg/mm (560 lbs/in) |
| Damping Levels | 16 Levels |
| Top Mount Front | Standard Pillow Ball |
| Top Mount Rear | Re-Use Factory Top Mount |
| Compatibility | Honda Civic Si 2014-2015 (FB/FG) |
Considering alternatives, some coilover kits offer more extreme lowering but sacrifice daily comfort. The Rev9 set targets a middle ground, making it suitable for drivers wanting enhanced road manners without excessive stiffness.
Overall, this kit stands out as a practical choice for improved suspension performance on a budget.
5. FAPO PS+ Coilovers for Honda Civic 2012-2015 FG FB

Upgrade your Honda Civic 9th Gen FG/FB with the FAPO PS+ Coilovers, built to enhance driving precision and comfort. Designed specifically for models from 2012 to 2015, these coilovers bring adjustable suspension control to suit various road conditions.
Drive with confidence as you benefit from improved handling and increased tire grip. Whether for daily driving or spirited track sessions, this kit adapts seamlessly to your style and environment.
The FAPO PS+ Coilovers offer 16-level adjustable damping, allowing you to fine-tune the suspension from soft to firm with ease. This versatility enhances driving performance by absorbing bumps smoothly and maintaining tire contact on different terrains.
The mono-tube design supports stable damping while improving heat dissipation, making it reliable for long-term use.
Included camber plates provide customizable alignment, which boosts tire grip and sharpens steering response. These adjustments help maintain control and improve overall stability under various driving conditions. The front and rear springs come with specific rates of 6 kg/mm and 10 kg/mm, respectively, which balance comfort and sportiness effectively.
The front and rear springs come with specific rates of 6 kg/mm and 10 kg/mm, respectively, which balance comfort and sportiness effectively.
Manufactured with precision, these coilovers are compatible with Honda Civic and Acura ILX models, reflecting quality craftsmanship from FAPO RACING. Installation is straightforward with included sway bar links and necessary tools, making setup hassle-free. Suitable for drivers seeking a combination of performance tuning and daily usability, this kit delivers dependable handling enhancements without sacrificing ride comfort.
Pros
- 16 levels of damping for tailored ride settings
- Adjustable camber plates improve steering accuracy
- Mono-tube design enhances heat dissipation and durability
Cons
- May require occasional maintenance to keep adjustments precise
The FAPO PS+ Coilovers represent a balanced upgrade for Civic owners wanting improved suspension flexibility and road feel. Their robust design and adjustable features provide a noticeable difference in ride quality and handling. Consider these coilovers if you want enhanced control and a customizable suspension suited for varied driving demands.
Consider these coilovers if you want enhanced control and a customizable suspension suited for varied driving demands.
| Specification | Detail |
|---|---|
| Brand | FAPO RACING |
| Model Number | PS002520-41 |
| Compatibility | Honda Civic 9th Gen FG/FB (2012-2015), Acura ILX DE2 (2016-2019) |
| Damping Adjustment | 16 levels adjustable damping |
| Design | Mono-tube |
| Spring Rate | Front: 6 kg/mm, Rear: 10 kg/mm |
| Spring Preload | 7-10mm |
| Spring Length | Front: 200mm, Rear: 140mm |
| Included Components | 2 sway bar links, 2 wrenches |
For drivers aiming to improve their vehicle’s suspension without sacrificing comfort, the FAPO PS+ Coilovers offer a practical and effective solution. Its adjustable features provide versatility rarely found at this level of quality, making suspension tuning accessible and rewarding.
6. Rev9 Hyper-Street II Coilover Suspension Kit for Honda Civic Si 2014-15

Upgrade your Honda Civic Si 2014-15 with performance-focused suspension that enhances both handling and aesthetics. The Rev9 Hyper-Street II Coilover Suspension Kit provides a customizable ride, allowing you to fine-tune your vehicle for improved control on the street or track. Experience a perfect blend of comfort and sportiness designed specifically for this model.
Experience a perfect blend of comfort and sportiness designed specifically for this model.
Built to deliver precision and durability, these coilovers feature separate adjustments for ride height and spring tension. This means you can lower your car properly and adjust stiffness without compromising comfort.
Equipped with a robust mono-tube shock and steel alloy construction, they offer 32 levels of rebound damping adjustment. This level of customization ensures adaptable performance according to driving conditions and preferences while maintaining stability and responsive feedback.
Designed explicitly for the 9th gen Civic Si, the kit includes front and rear springs with carefully chosen rates, providing balanced support and improved cornering grip. The front springs have an 8 kg/mm rate (448 lbs/inch), while the rear springs are slightly stiffer at 10 kg/mm (560 lbs/inch), assisting in vehicle balance and handling dynamics. Furthermore, the front features pillow ball camber plates for enhanced alignment tuning, although factory top mounts are reused at the rear.
Installation is recommended to be performed by professionals due to the precise setup involved and the absence of instructions. Despite this, once installed, the coilovers offer a remarkable combination of improved road feel, lowered stance, and adjustable damping forces. This kit appeals to those seeking better cornering performance and vehicle control without sacrificing ride comfort on daily drives.
Pros
- Independent adjustment of ride height and spring tension
- 32 levels of rebound damping for tailored ride quality
- Durable mono-tube shocks with steel alloy body
Cons
- Requires professional installation; no instructions included
The Rev9 Hyper-Street II Coilover Suspension Kit stands out as a solid upgrade option for Honda Civic Si owners focused on improved handling and ride customization. Its adjustable features and robust build provide excellent value for drivers seeking balanced daily and spirited driving performance.
| Specification | |
|---|---|
| Compatibility | Honda Civic Si 2014-2015 |
| Front Spring Rate | 8 kg/mm (448 lbs/inch) |
| Rear Spring Rate | 10 kg/mm (560 lbs/inch) |
| Damping Adjustment | 32 levels rebound force |
| Shock Type | Mono-tube with steel alloy body |
| Top Mount | Front: Pillow Ball Camber Plate; Rear: Factory mount reused |
| Weight | 54 pounds |
| Package Dimensions | 32 x 20 x 9 inches |
| Finish | Metallic |
For those who prioritize suspension tuning tailored to street and light track use, this coilover kit offers commendable adjustability and component quality. Compared to other options, it assures a well-balanced ride with an emphasis on longevity and performance refinement. If a customizable suspension with proven design is what you need, the Rev9 Hyper-Street II kit is a worthy consideration.
If a customizable suspension with proven design is what you need, the Rev9 Hyper-Street II kit is a worthy consideration.
7. BC Racing BR Series Coilovers for Honda Civic SI 2014-2016

Enhance your Honda Civic SI 2014-2016 with the BC Racing BR Series Coilovers, designed to deliver superior handling and customization. These coilovers offer precise height adjustments, creating a smoother drive whether on city streets or the track.
Engineered for drivers seeking both comfort and sport performance, this suspension system redefines control and style. Experience a tailored ride that adapts to your driving needs.
The BC Racing BR Series Coilovers provide a versatile solution for upgrading your vehicle’s suspension. Height adjustment is made simple through the shock body, allowing you to achieve your preferred stance without compromising suspension quality.
Durability is a highlight of these coilovers, featuring a mono-tube shock design protected by dust boots. This robust construction supports longevity, and every component is rebuildable, ensuring value over time. The included front camber plates offer fine-tuning of alignment to better handle cornering and reduce tire wear, making them a practical yet performance-driven upgrade.
The included front camber plates offer fine-tuning of alignment to better handle cornering and reduce tire wear, making them a practical yet performance-driven upgrade.
Designed specifically for the Honda Civic SI, these coilovers enhance handling with linear piston and damping curve technology. They balance comfort and performance effectively, suitable for everyday driving and spirited weekend sessions.
Pros
- Adjustable ride height independently of spring compression
- Durable mono-tube shock design with dust boots for protection
- Includes front camber plates for precise alignment tuning
Cons
- Price point may be high for casual drivers
The BC Racing BR Series Coilovers deliver a notable upgrade for Honda Civic SI owners seeking improved suspension control and customization. Their rebuildable nature and alignment adjustability add lasting value while supporting dynamic driving.
Compared to other coilovers, they blend quality and functionality effectively, suitable for those prioritizing both daily comfort and spirited handling.
| Specification | Details |
|---|---|
| Brand Name | BC Racing |
| Model Number | BCR A-97-BR |
| Manufacturer Part Number | A-97-BR |
| Set Name | BR Series Coilovers |
| Unit Count | 1 Count |
| Suitable For | Honda Civic SI 2014-2016 |
In my experience, these coilovers strike a great balance between ride comfort and handling precision. They offer meticulous adjustments that let you personalize your driving feel without sacrificing durability. For drivers aiming to refine their Civic’s suspension, this setup provides dependable performance that stands out in its category.
8. maXpeedingrods Coilovers for Honda Civic Si 2014-2015

Enhance your Honda Civic Si 2014-2015 with the maXpeedingrods Coilovers designed for superior handling and style. These coilovers combine adjustable ride height and preset damping to tailor your driving experience.
Crafted with high tensile springs and durable materials, they offer longevity and consistent performance on the road.
Transform your vehicle’s stance and response with precision engineering. The adjustability allows lowering your car by 1 to 3 inches, giving it an aggressive look. Beyond appearance, these coilovers improve steering feedback and minimize unwanted noise, making every drive more engaging and controlled.
Beyond appearance, these coilovers improve steering feedback and minimize unwanted noise, making every drive more engaging and controlled.
The maXpeedingrods Coilovers fit perfectly on Honda Civic Si models from 2014 to Featuring high tensile front and rear springs, these coilovers withstand over 600,000 compressions with minimal distortion, ensuring reliable durability. A special surface treatment enhances resistance to wear and improves overall lifespan.
A special surface treatment enhances resistance to wear and improves overall lifespan.
Adjustable ride height provides a custom stance, allowing drivers to lower their car significantly while maintaining excellent ride quality. This improves handling dynamics by lowering the center of gravity and reducing body roll during cornering.
Constructed with 6061 aluminum alloy treated with T6 for increased hardness, these coilovers deliver strength without adding unnecessary weight. The precision-machined parts guarantee easy installation and compatibility.
Pros
- Highly durable springs tested for long-term use with minimal distortion
- Adjustable ride height for personalized stance and improved handling
- Constructed from strong, lightweight aluminum alloy for lasting strength
Cons
- Not designed to retain original factory ride height
Offering a robust upgrade for the 9th generation Honda Civic Si, the maXpeedingrods Coilovers blend durability, adjustability, and performance in one package. Their precise fitment and quality materials make them a dependable choice for drivers aiming to improve both aesthetics and driving dynamics.
| Specification | Details |
|---|---|
| Brand Name | maXpeedingrods |
| Model Number | ZM45BZ |
| Manufacturer Part Number | ZM45BZ |
| Set Name | MXR-B2 4-Corner Kit |
| Number of Items | 1 Set |
| Unit Count | 1 Count |
| Item Weight | 26000 g |
| Front Spring Rate | 8 kg/mm (448 lbs/in) |
| Rear Spring Rate | 7 kg/mm (392 lbs/in) |
| Ride Height Adjustable Range | 1 – 3 inches |
| Material | 6061 Aluminum Alloy with T6 Treatment |
Compared to similar coilovers on the market, these stand out for their solid build and effective tuning out of the box. They cater well to drivers wanting a noticeable change in stance and handling without complicated adjustments.
Overall, they provide a balanced blend of comfort and sportiness suitable for daily and occasional performance driving.
9. Godspeed MSS0290-A MonoSS Coilovers for Honda Civic Si 2012-13

Upgrade your 9th generation Honda Civic Si with the Godspeed MSS0290-A MonoSS Coilovers, engineered to enhance both performance and ride quality. Designed specifically for the 2012-2013 Civic Si models, these coilovers offer a perfect balance between daily driving comfort and precise handling on the track.
Experience improved suspension control through adjustable damping and height settings that tailor your ride exactly how you want it. Durable materials and advanced engineering make these coilovers a reliable choice for drivers seeking better stability without sacrificing comfort.
The Godspeed MSS0290-A MonoSS Coilovers bring together high-quality construction and versatile performance features. Each unit features a 52mm mono-tube stainless steel shock that provides durability and excellent heat dissipation. The 16-level adjustable rebound damping allows fine-tuning to suit different driving conditions from smooth city roads to spirited track sessions.
The 16-level adjustable rebound damping allows fine-tuning to suit different driving conditions from smooth city roads to spirited track sessions.
With spring rates set at 8 kg/mm upfront and 10 kg/mm in the rear, the system maintains precise control and enhances cornering response. The inclusion of a Koyo Japan 6204z bearing inside the performance piston ensures smooth stroke operation, reducing wear and improving longevity.
Installation requires professional expertise to maximize the coilovers’ potential. Independent spring tension and height adjustments make it easy to customize ride height and stiffness without compromising ride quality. The powder-coated CNC machined aluminum and carbon steel parts not only add strength but also resist corrosion over time.
The powder-coated CNC machined aluminum and carbon steel parts not only add strength but also resist corrosion over time.
This suspension setup is best suited for Honda Civic Si owners who want a combination of daily drivability and improved handling on weekend drives. Its rebuildable design and use of racing-grade shock oil with a high viscosity index further underline the product’s focus on durability and consistent performance.
Pros
- Adjustable damping with 16 rebound force levels for versatile driving needs
- Robust 52mm mono-tube stainless steel shocks for longevity and heat management
- Independent spring tension and height adjustment for precise customization
Cons
- Professional installation recommended to maximize performance benefits
The Godspeed MSS0290-A MonoSS Coilovers provide an excellent upgrade path for improving handling and ride comfort on the 2012-2013 Honda Civic Si. High-quality materials and advanced adjustability allow drivers to tailor performance for street and track use alike.
Their rebuildable design adds long-term value compared to many fixed suspension kits.
| Feature | Specification |
|---|---|
| Compatibility | Honda Civic Si (FB/FG) 2012-2013 |
| Spring Rate (Front/Rear) | 8 kg/mm / 10 kg/mm |
| Damping Adjustment Levels | 16 Rebound Force Levels |
| Shock Type | 52mm Mono-Tube Stainless Steel Shock |
| Bearing | Koyo Japan 6204z |
| Materials | Powder Coated CNC Machined Aluminum & Carbon Steel |
| Shock Oil | Racing Grade with High Viscosity Index |
| Weight | 48 pounds |
| Dimensions | 32 x 20 x 9 inches |
In comparison to similar coilovers, Godspeed’s MonoSS offers a balance between affordability and advanced suspension features. The combination of adjustable damping and rebuildable shocks gives it an edge for drivers wanting customizable performance without compromising durability.
10. Rev9 Hyper-Street ONE Adjustable Coilover Kit for Honda Civic Si

Upgrade your Honda Civic Si suspension with the Rev9 Hyper-Street ONE Adjustable Coilover Kit. Designed specifically for models 2014 and 2015, this coilover system offers precise control over your vehicle’s handling and stance. It delivers a smooth driving experience while enhancing road grip and cornering stability.
It delivers a smooth driving experience while enhancing road grip and cornering stability.
Built with a mono-tube shock design and adjustable damping, these coilovers allow customization to suit different driving conditions. Enjoy sport-tuned lowering springs engineered to improve ride comfort without sacrificing performance or ground clearance. The Rev9 Hyper-Street ONE kit presents a smart suspension upgrade for drivers who want balanced performance and style.
The Rev9 Hyper-Street ONE kit presents a smart suspension upgrade for drivers who want balanced performance and style.
The Rev9 Hyper-Street ONE coilovers fit front and rear with spring rates of 8 kg/mm and 10 kg/mm, respectively. Adjustable through 16 damping levels, these shocks provide fine-tuned control over rebound and compression to match your driving preferences. Installation requires professional skills as no instructions are included, ensuring correct setup and optimal use.
Installation requires professional skills as no instructions are included, ensuring correct setup and optimal use.
Sport lowering springs lower your ride height between 25 and 25 inches, enhancing aesthetics and lowering the center of gravity for better road contact. The metallic finish adds a durable and visually appealing touch to the coilovers, built to endure daily use and spirited driving.
Designed specifically for the Civic Si FB/FG chassis, this kit balances comfort with sport performance well.
Value is highlighted by offering a performance suspension upgrade at a competitive level without compromising quality. Whether upgrading from stock or replacing worn components, this kit improves handling sharpness and ride smoothness alike. It’s best suited for drivers aiming to enhance both the visual stance and dynamic feedback of their 9th generation Honda Civic Si.
It’s best suited for drivers aiming to enhance both the visual stance and dynamic feedback of their 9th generation Honda Civic Si.
Pros
- 16-level adjustable damping for personalized suspension tuning
- Sport-tuned lowering springs improve handling and ride comfort
- Robust mono-tube shock design for consistent performance
Cons
- Installation requires experienced professionals due to lack of instructions
The Rev9 Hyper-Street ONE Adjustable Coilover Kit offers an excellent balance of adjustability, build quality, and improved vehicle dynamics. It stands out by combining customizable damping with sport springs tailored for the 9th gen Civic Si, providing a noticeable upgrade over standard suspension setups.
| Specification | Details |
|---|---|
| Compatibility | Honda Civic Si FB/FG 2014-2015 |
| Spring Rate (Front/Rear) | 8 kg/mm (448 lbs/in), 10 kg/mm (560 lbs/in) |
| Damping Adjustment | 16 Levels Adjustable |
| Shock Design | Mono-Tube |
| Lowering Range | 1.25 to 2.25 inches |
| Finish | Metallic |
| Manufacturer | Rev9 |
Overall, this coilover kit is a solid choice for Civic Si owners seeking reliable performance and style improvements. While the installation may require a professional touch, the adjustable settings and ride quality make it worthwhile. Compared to other options, it strikes a good balance without over-lowering or harsh ride issues.
Compared to other options, it strikes a good balance without over-lowering or harsh ride issues.
11. maXpeedingrods Coilover for Honda Civic and Acura CSX 2006-2011

Upgrade your ride with the maXpeedingrods Coilover designed for Honda Civic and Acura CSX models from 2006- Built to enhance handling, comfort, and style, this coilover system offers versatile adjustments that cater to various driving conditions.
Experience the perfect combination of street-friendly comfort and track-ready control. Its lightweight aluminum construction provides durability while reducing overall weight.
The coilover kit includes front and rear assemblies crafted for precise performance and comfort. Featuring a 24-level adjustable damper, users can fine-tune suspension stiffness from soft street settings to firm racetrack configurations.
Height adjustment allows lowering between 1 to 3 inches for a more aggressive look and improved handling dynamics. The thread-type mechanism ensures easy installation and eliminates common issues like turning noise. High tensile springs made of race-grade steel maintain strength and reliability under stress.
High tensile springs made of race-grade steel maintain strength and reliability under stress.
Each coilover is engineered with upgraded damping oil and aluminum plates for enhanced response and longer service life. This set fits a variety of Honda Civic and Acura CSX models, making it an ideal option for daily drivers and weekend racers alike. Installation is straightforward with included spanners and components.
Installation is straightforward with included spanners and components.
Pros
- 24-level adjustable damper for tailored ride control
- Thread-type adjustable height from 1 to 3 inches
- Durable race-grade steel springs and upgraded aluminum plates
Cons
- Height adjustment does not retain original factory ride height
Offering a blend of versatility and performance, this coilover kit is excellent for those wanting to upgrade their 9th gen Civic or compatible Acura CSX without sacrificing daily comfort. Its wide adjustment range makes it suitable for street driving, mountain roads, and track days. Compared to similar kits, it balances quality and features at a competitive level.
| Specification | Details |
|---|---|
| Brand Name | maXpeedingrods |
| Model Number | OW34YU |
| Set Name | T6 Series |
| Number of Items | 1 (Front & Rear Coilovers + C Spanners) |
| Item Weight | 25,750 g |
| Adjustability | 24 Levels Damper, 1-3 inches Height |
| Spring Material | Race-grade 55CrSi Steel |
| Fitment | Honda Civic 2006-2011 (multiple variants), Acura CSX 2006-2011 |
| Damper Upgrade | T6 Series with upgraded damping oil and aluminum plates |
For drivers seeking dependable suspension upgrades, this coilover provides excellent control with straightforward adjustability. Its solid construction and feature set make it a smart choice for improving handling and stance on compatible vehicle models.
12. Rev9 R9-HS2-011_2 Coilover Kit for Honda Civic Si 2012-13

Elevate your 9th gen Honda Civic Si’s handling and stance with the Rev9 R9-HS2-011_2 Coilover Kit. Designed specifically for 2012-2013 Civic Si models, this kit offers precise adjustments for improved driving dynamics and a sporty lowered look. It balances performance and comfort for daily driving and spirited road use.
It balances performance and comfort for daily driving and spirited road use.
Engineered with quality materials and adaptable settings, it promises enhanced control and responsiveness. Enjoy the combination of sleek design and functional tuning capabilities that cater to both casual drivers and those seeking refined suspension upgrades.
The Rev9 coilover kit provides a specialized lowering solution that does not retain factory ride height but improves vehicle stance and cornering capabilities. Featuring a Mono Tube shock with a durable steel alloy body, it ensures longevity and reliable damping performance.
The spring rates, set at 8 kg/mm front and 10 kg/mm rear, offer balanced stiffness suitable for a variety of road conditions.
Adjustability is a standout feature, with 32 levels of rebound damping control allowing fine-tuning to match specific driving preferences. Independent spring tension and ride height settings let users adjust stiffness and height separately, delivering a customizable ride.
With a metallic finish and robust build, this coilover kit combines style with function. It enhances the driving experience by reducing body roll and improving cornering grip. Ideal for drivers aiming for a sportier ride without sacrificing everyday usability, it represents a practical upgrade for Civic Si owners seeking precision and improved aesthetics.
Ideal for drivers aiming for a sportier ride without sacrificing everyday usability, it represents a practical upgrade for Civic Si owners seeking precision and improved aesthetics.
Pros
- Adjustable 32-level rebound damping for personalized ride control
- Independent spring tension and ride height adjustments
- Durable mono tube shocks with steel alloy body
Cons
- No installation instructions included; professional installation recommended
The Rev9 R9-HS2-011_2 Coilover Kit presents a well-rounded suspension upgrade for 9th gen Civic Si models. It offers flexibility through multiple tuning options and solid build quality, making it a worthy choice for drivers wanting enhanced performance and style. Below is a summary of key specifications to help you decide.
Below is a summary of key specifications to help you decide.
| Specification | Details |
|---|---|
| Compatibility | Honda Civic Si 2012-2013 |
| Spring Rate (Front/Rear) | 8 kg/mm (448 lbs/in) / 10 kg/mm (560 lbs/in) |
| Damping Levels | 32-way adjustable rebound force |
| Shock Type | Mono Tube with steel alloy body |
| Adjustments | Independent spring tension & ride height |
| Finish | Metallic |
| Weight | 54 pounds |
| Manufacturer Part Number | R9-HS2-011_2 |
From personal experience, this coilover kit strikes a good balance between handling upgrades and ride comfort for daily use. Its adjustability allows customization that fits many driving styles, making it a solid investment for those upgrading their Civic Si suspension.
Top Coilovers for 9th Gen Si: Ultimate Buying Guide 2024
Compatibility with 9th Gen Si
Model year and chassis fitment. Suspension geometry considerations. OEM mounting points and hardware.Finding the right coilovers designed specifically for the 9th gen Si can greatly enhance the driving experience by improving handling and ride quality. These coilovers are engineered to match the model year and chassis fitment accurately, which helps maintain proper suspension geometry for safe and predictable performance.
Considering these elements helps avoid issues like improper ride height, uneven tire wear, or altered suspension kinematics. Whether the aim is daily driving stability or spirited cornering, selecting coilovers that respect these design factors leads to a balanced upgrade tailored to the 9th gen Si’s unique specifications.
Ride Quality and Adjustability
Damping settings (single vs. dual adjustable). Spring rates and comfort balance. Height adjustability and corner balancing.When selecting the best coilovers for 9th gen si, paying close attention to damping settings can greatly influence your driving experience. Choices typically range between single adjustable options that allow for overall firmness changes and dual adjustable setups offering separate control over compression and rebound, catering to more personalized tuning. Spring rates play a significant role in balancing comfort and performance; softer springs provide a smoother ride ideal for daily driving, while stiffer springs enhance handling during spirited driving but may reduce comfort.
Spring rates play a significant role in balancing comfort and performance; softer springs provide a smoother ride ideal for daily driving, while stiffer springs enhance handling during spirited driving but may reduce comfort. Height adjustability presents the advantage of modifying the vehicle’s stance, improving aesthetics and performance, while corner balancing helps achieve an even weight distribution across all four wheels, contributing to improved stability and handling dynamics. Considering these factors helps in finding coilovers that not only improve vehicle performance but also maintain a favorable balance between ride comfort and adjustability to suit various driving conditions.
Build Quality and Materials
Construction materials (aluminum vs. steel). Corrosion resistance and coatings. Brand reputation and manufacturing standards.When searching for coilovers suitable for the 9th gen Si, attention to construction materials often plays a significant role in the overall durability and performance. Aluminum coilovers tend to offer the benefit of being lightweight, which can enhance handling and acceleration while reducing unsprung weight. Steel variants typically provide greater strength and can be ideal for those prioritizing robustness over weight savings.
Corrosion resistance is another key aspect, as coilovers are exposed to various weather conditions; coatings such as zinc plating or powder coating help protect against rust and extend the lifespan of the components. Choosing products from brands known for adhering to strict manufacturing standards can provide peace of mind, as these companies often implement rigorous quality control procedures, ensuring reliable performance and safety.
Considering these elements can lead to a more satisfying and long-lasting upgrade experience for your 9th gen Si’s suspension system.
Performance and Handling Benefits
Improved handling and cornering stability. Impact on braking and acceleration. Track vs. street driving suitability.When choosing coilovers for a 9th gen Si, understanding how they affect driving dynamics can help make the right selection. Upgrading to quality coilovers often leads to improved handling and cornering stability by providing a more responsive suspension setup that keeps the car planted during sharp turns.
Depending on whether the car is primarily used for street driving or track days, different coilover options may be more suitable. Those geared toward street use typically focus on comfort and ride quality alongside handling improvements, while track-oriented coilovers emphasize adjustability and stiffness to maximize performance on the race circuit.
Paying attention to factors like ride height adjustability, damping settings, and build quality will ensure the coilovers meet the demands of your driving style and conditions.
Installation and Maintenance
Ease of installation and required tools. Maintenance needs and service intervals. Warranty and customer support.When choosing coilover suspension systems, ease of installation is an important factor to keep in mind. Many coilovers come with adjustable components designed to fit directly onto a vehicle using basic hand tools such as wrenches and sockets, making the installation process manageable for those with some mechanical aptitude. However, having access to a car lift or jack stands is recommended to safely raise the vehicle during installation.
However, having access to a car lift or jack stands is recommended to safely raise the vehicle during installation. Regarding maintenance, coilovers require periodic checks to maintain performance and longevity. Regular lubrication of threaded sections and inspections for leaks or corrosion will help ensure they function smoothly over time.
Service intervals can vary depending on driving conditions but typically involve routine adjustments or replacing worn parts every few years. Warranty coverage often reflects the manufacturer’s confidence in their product, so opting for coilovers backed by a solid warranty can provide peace of mind in case of defects or premature wear.
Price and Value
Budget ranges and what to expect. Included components and accessories. Longterm investment and resale value.When choosing coilovers for a 9th gen Si, prices vary across different budget ranges that align with the quality and features offered. Entry-level options provide basic adjustability and improved ride height but may lack advanced damping controls, while mid-range selections usually include finer tuning capabilities and more durable materials for enhanced performance and comfort.
Higher-end coilovers often come with complete kits that include spring compressors, adjustable mounts, and detailed instructions to facilitate easier installation and customization tailored to specific driving needs. Investing in a reliable set of coilovers can positively affect your vehicle’s resale value, as they indicate thoughtful maintenance and upgrades. Considering coilovers as a long-term investment means weighing the initial expense against the improvement in handling, ride quality, and overall satisfaction, especially since well-chosen components tend to hold their value and remain functional for many years under proper care.
People Also Asked
What Are The Best Coilovers For Improving Handling On A 9Th Gen Honda Civic Si?The best coilovers for improving handling on a 9th gen Honda Civic Si are typically the KW Variant 3 or the BC Racing BR Series, as both offer adjustable damping and ride height for a customizable setup. These options provide a great balance of performance, comfort, and durability for spirited driving.
How Do The Top Coilovers For A 9Th Gen Si Compare In Terms Of Ride Quality And Adjustability?Top coilovers for a 9th gen Si generally offer a balanced ride quality, combining sporty handling with reasonable comfort for daily driving. They also provide excellent adjustability, allowing drivers to fine-tune ride height and damping settings to match their specific performance and comfort preferences.
Which Coilover Brands Offer The Best Value For A 9Th Gen Honda Civic Si?For a 9th gen Honda Civic Si, BC Racing and Tein offer some of the best value coilovers, balancing performance, durability, and price. Both brands provide adjustable options that cater well to street and occasional track use.
Are There Any Coilovers Specifically Designed For Track Use On The 9Th Gen Civic Si?Yes, several manufacturers offer coilovers specifically designed for track use on the 9th gen Civic Si, such as KW Suspension and Tein. These coilovers provide improved handling, adjustability, and ride quality tailored for performance driving on the track.
What Factors Should Be Considered When Choosing Coilovers For A 9Th Gen Honda Civic Si?When choosing coilovers for a 9th gen Honda Civic Si, consider factors such as adjustable ride height and damping for personalized performance and comfort. Additionally, ensure compatibility with your driving style and intended use, whether daily driving, track, or show purposes.
Conclusion
Choosing the best coilovers for 9th gen Si involves balancing ride comfort, handling performance, and budget. These coilovers enhance your car’s cornering ability and provide adjustable settings to tailor suspension stiffness according to your driving preferences. While some models may come at a higher price or require professional installation, their long-term benefits often outweigh these drawbacks.
Ideal for drivers seeking improved control and responsiveness without sacrificing daily drivability, these coilovers deliver noticeable improvements in both street and spirited driving scenarios. Considering factors like build quality, adjustability, and compatibility will help address any remaining concerns.
Ultimately, selecting the right coilovers depends on your specific goals, but the options discussed offer dependable choices that enhance the driving experience of a 9th gen Si effectively.
