Wiseco Subaru EJ257 WRX/STI 4v Dish -19cc 99.5 Piston Shelf Stock

This product includes one Wiseco 99.50 mm forged piston for your Subaru EJ257 engine. These pistons are designed for serious builders working on heavy to severe duty race applications. They are constructed from 2618 aluminum, which offers improved tensile strength for demanding performance builds. The piston crown is fully machined, and it features a -19cc dish to help achieve your desired compression ratio.

Wiseco has packed these pistons with features aimed at improving performance and durability. You'll find precision ring grooves, anti-detonation grooves, and other features designed to enhance ring seal. The piston skirts are coated with ArmorGlide, a material that helps reduce friction, resist seizure, and operate more quietly. For added reliability, these pistons also include forced pin oiling to ensure the wrist pin stays well-lubricated under high stress.

These pistons are built to withstand the rigors of performance driving. Remember that this set is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.