CP high-performance piston and ring set engineered for the Subaru EJ257 engine in WRX STI models—featuring a 100mm bore diameter, 0.5mm oversize specification, and an 8.2:1 compression ratio for enhanced power and reliability.

Description

Discover the power and reliability of the CP Piston & Ring Set designed specifically for the Subaru EJ257 WRX STi. This forged piston set features a precise bore size of 100mm and a size of 0.5mm, crafted to optimize your engine’s performance and efficiency. With a compression ratio of 8.2, these pistons help enhance combustion, delivering improved power output and responsiveness.
Manufactured by CP Pistons, a trusted name in high-performance engine components, these pistons are built to withstand the demands of aggressive tuning and high-stress environments. Whether you’re upgrading your engine for motorsport, time attack, or spirited street driving, this piston set provides the durability and consistency that enthusiasts require.
Install with confidence knowing you are using quality components developed with precision engineering and rigorous testing. Suitable for enthusiasts and professional workshops alike, the CP Piston & Ring Set is an excellent choice for anyone looking to maintain or boost their Subaru EJ257 WRX STi’s engine integrity and power potential. Upgrade your build today with these premium forged pistons and rings for lasting performance and reliability.

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