If you're looking to boost your Subaru EJ20's performance, the HKS 21005-AF001 Piston Ring Set and Piston Pin Set are essential components for any serious enthusiast. HKS, a pioneer in high-performance auto parts since 1973, has a rich history of engineering top-notch aftermarket parts that outshine original equipment manufacturers.
Users have praised the HKS Piston Ring Set for its remarkable fit and performance. Many have noted that after installation, their Subaru EJ20 engines run smoother and more efficiently, making it a popular choice for those looking to enhance their vehicle's capabilities on the track or during spirited drives.
With decades of experience in tuning and manufacturing high-performance components, HKS is a brand you can trust. Their commitment to quality and performance ensures that you’re not just upgrading your engine; you're investing in reliability and power.
Other Part Numbers:
HKS #hks21005-AF001
⚠ 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.