Wiseco high-performance forged pistons engineered for Subaru EJ257 engines in WRX and STI models—featuring a 4-valve dish configuration, -19cc dish volume, and precise 100mm bore diameter for optimal compression and reliability.

Description

Professional Series forged racing pistons from Wiseco are no-expense-spared pistons designed for the serious racers and builders. Packed full of custom-level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco?s Professional Series.
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