Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 92mm STD Bore 8.5:1 Dish Piston Set with Rings

Manley Performance is well-known for making strong engine components that serious builders trust. If you're working on a 2002-2005 Subaru Impreza with the EJ205 engine, this set of 79mm +4mm stroker pistons is built to handle the demands of a performance build. These pistons are designed to increase displacement and compression, giving your engine more power and torque.

These pistons are forged from 2618 alloy, a material chosen for its strength and ability to withstand high temperatures and pressures. They feature cam and barrel skirt profiles, which help them run smoothly against the cylinder walls while still generating significant power. The ring lands and grooves are machined to very tight tolerances, ensuring a good seal for the piston rings, which is crucial for both power and oil control. Each set comes with chrome moly wrist pins, known for their durability, and the pistons themselves have a dish shape that results in a specific 8.5:1 compression ratio when installed in your EJ205 engine. This dish design is important for managing detonation, especially in boosted applications.

This set includes the pistons, rings, and chrome moly wrist pins, so you have the core components needed to rebuild your engine's short block. Remember that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.