Pistons and Rings for 2004-2012 STI (WISK598M100)

Wiseco EJ257 4v Dish -19cc 100mm Piston Shelf Stock Kit, made to fit the 2004-2012 Subaru STI. Professional Series forged racing pistons from Wiseco are no-expense-spared pistons designed for the serious racers and builders.

Performance Gains

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.

Fits These Vehicles

Features & Specs

• Remove your limits with Wiseco's Professional Series.
• Brand: Wiseco
• Part number: WISK598M100

Straight from SubiSpeed

Engine-build parts: confirm bore, compression ratio and ring gaps for your build, and have the block machined to match.