.jpeg?q=90&p=thumb&w=200&h=200)
.jpeg?q=90&p=thumb&w=40&h=40)
Brakes 
Driveline 
Electronics 
Handlebars & Controls 
Package Deals 
Wheel Accessories 
Wheels by Vehicle 
Tools and Maintenance 
Universal & Repair 
Vivid Racing Gear Select the year of your Subaru STI:
HIPERMAX S Suspension System
Looking for a comfortable ride with impressive handling? The HKS HIPERMAX S is designed specifically for your Subaru Impreza WRX | STI 4D (2004). This new series builds upon the legacy of the MAXIV GT Series, incorporating advanced technologies that enhance both performance and durability.
Key Features:
- Dual PVS: This innovative dual preload valve system minimizes unnecessary damping force at high piston speeds, significantly improving ride comfort without sacrificing driving performance.
- Wide Range Damping Force Adjustment: The enhanced Needle Jet design allows for a broader range of damping force adjustments, making it easier to adapt to various driving conditions.
- Improved Bump Stop Rubber: The newly shaped bump stop rubber effectively reduces body roll while enhancing ride comfort, surpassing the performance of standard hydro bump stop rubber.
- Low Friction Technology: Advanced tribology technology ensures higher durability and reduced friction, resulting in a smoother ride and better handling.
- 3-Year Warranty: Enjoy peace of mind with a three-year warranty, a significant upgrade from the one-year warranty of the previous MAXIV GT series, thanks to optimized internal components and enhanced quality.
Customer Feedback:
Users have praised the HIPERMAX S for its remarkable balance between comfort and performance. Many have noted how the suspension system transforms their driving experience, making daily commutes and spirited drives equally enjoyable.
Fitment:
- Subaru Impreza WRX | STI 4D (2004)
Other Part Numbers:
HKS #hks80300-AF002
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2004 Subaru STI |
STI | 2004 |
|
2004 Subaru WRX |
WRX | 2004 |
Since its beginning, HKS has been committed to providing well-integrated, reliable,and environmentally sound performance systems. Mr. Hasegawa's strong leadership, engineering genius, creativity and willingness to listen to customers are the pillars of the company's success. Monitoring consumer reaction and input on issues pertaining to material quality, external appearance, sound quality, and of course, performance, HKS stays in tune with automotive enthusiasts' needs. Moreover, HKS' products are designed to be user friendly for easy installation.
HKS provides a warranty to the original purchaser of HKS exhaust systems against defects in materials and workmanship for a period of one year. The warranty applies only for vehicle specific exhaust systems. Other products such as metal catalyzers, front pipes, exhaust manifolds, and center pipes are not covered.
