Manley Subaru WRX STi (EJ257) 99.75mm +0.25mm Bore 9.8:1 CR T/T Platinum Series Piston - Single

Manley Performance is well-known for making strong engine components, and their Platinum Series pistons are a popular choice for serious engine builds. This single piston is specifically made for the Subaru WRX STi with the EJ257 engine, featuring a 99.75mm bore and a 9.8:1 compression ratio. It's designed to handle the demands of performance applications, offering a solid option for rebuilding or upgrading your engine.

These pistons are forged from 2618 alloy, a material chosen for its superior strength and performance under high stress. They also feature proven cam and barrel skirt profiles, which help generate power while being gentle on your cylinder walls. Manley pays close attention to the details, ensuring exacting standards for ring lands and grooves to achieve a better ring seal and more power. The included wrist pins are made from Chrome Moly for added durability, and Manley's unique fixturing process ensures the ring groove is perfectly square to the skirt.

Keep in mind that this piston is not CARB approved and cannot be shipped to California. If you're rebuilding the top end of your EJ257, this piston offers a well-built component from a trusted name in performance engine parts.