Upgrade your Subaru WRX STI with the HKS 1408-RA021, a high-performance exhaust system designed to deliver both power and style. Crafted with precision, this exhaust system not only enhances your vehicle's aesthetics but also optimizes exhaust flow for improved engine performance.
| Specification | Details |
|---|---|
| Part Number | 1408-RA021 |
| Material | Stainless Steel |
| Weight | Approximately 30 lbs |
| Compatibility | Subaru WRX STI (various model years) |
Many users appreciate the noticeable increase in throttle response and overall power delivery after installing the HKS 1408-RA021. The fitment is often praised for being straightforward, making it a popular choice for both DIY enthusiasts and professional mechanics. The sound is described as exhilarating, providing a perfect balance between performance and daily drivability.
Since its founding in 1973, HKS has been at the forefront of performance tuning, committed to creating high-quality engine components and turbo kits that outshine OEM parts. With the HKS 1408-RA021, you’re not just upgrading your exhaust; you’re investing in a legacy of performance and reliability.
Other Part Numbers:
HKS #hks1408-RA021
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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.