Wiseco Subaru WRX 4v R/Dome 8.4:1 CR 93mm Piston Kit

Wiseco is well-known for making tough, reliable engine components for performance applications. This Professional Series piston kit is a prime example, built specifically for serious racers and builders who demand the best for their Subaru EJ20 engine. These aren't your average pistons; they're packed with features designed to handle heavy to severe duty race builds, letting you push your engine's limits.

Each piston is forged and machined right here in the USA from 2618 aluminum, which gives them improved tensile strength to stand up to the demands of racing. You'll find precision ring grooves, an anti-detonation groove, and other features to improve ring seal. They also come with an ArmorGlide skirt coating that helps reduce friction, resist seizure, and keep operation quieter. The fully machined crown and forced pin oiling are just more details showing these pistons are made for performance.

This kit includes four pistons, each with a 93mm bore and an 8.4:1 compression ratio. Keep in mind these pistons are not CARB approved and cannot be shipped to California. For builders looking to maximize their Subaru's performance, this Wiseco kit is a solid option.