Wiseco Subaru EJ25 SOHC 4v Dish -18cc 99.5 Piston Shelf Stock Kit

If you're rebuilding the engine in your 1999-2011 Subaru Impreza for serious performance, a strong set of pistons is crucial. This Wiseco Professional Series piston kit is designed for those heavy to severe duty race builds where reliability under extreme stress is non-negotiable. These aren't your average pistons; they're built from 2618 aluminum, a material known for its improved tensile strength, making them well-suited for the demands of high-performance engines.

Wiseco machines these pistons right here in the USA, paying close attention to details like precision ring grooves, anti-detonation features, and additional ring seal improvements. They also come with an ArmorGlide skirt coating. This coating helps reduce friction and resist seizure, which also contributes to quieter operation. The fully machined crown ensures a clean combustion chamber, and forced pin oiling helps keep the wrist pins properly lubricated under high loads.

This kit includes four pistons, each with a -18cc dish and a 99.5mm bore, designed to fit the Subaru EJ25 SOHC 4-valve engine. Remember, these pistons are not CARB approved and cannot be shipped to California. If you're pushing your Subaru's engine hard, this Wiseco kit is built to handle it.