Cosworth 92.5mm 8.0:1cr Pistons Subaru WRX EJ20 2002-2005

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The piston is one of the most important components within an engine. It can be subjected to directional change up to 285 times every second and must withstand acceleration forces up to 8500g. Cosworth high performance forged pistons are designed and engineered to withstand this type of punishment and still perform. All Cosworth forged pistons are manufactured using the same methods as their Formula One pistons and feature friction reducing skirt coating, ultra strong pins, polished tops and patented anti-detonation bands. Additionally, each application uses a unique forging to minimize weight and ensure the strongest possible piston design.

      Proprietary Cosworth alloy


      Popular sizes


      Unique forging


      Skirt coating


      Polished top


      Anti-detonation bands


    High strength pin

Includes: Pistons, Wrist Pins, Circlips

Ring kit 20001515 Sold Separately and required for installation.


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