Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 93mm +1mm Bore 8.5:1 Dish Single Piston with Rings

If you're rebuilding the engine in your 2002-2005 Subaru Impreza, especially if you're looking to increase displacement, a strong set of pistons is key. This single piston from Manley is designed for stroker applications, increasing the bore size by 1mm to 93mm and featuring a dish that results in an 8.5:1 compression ratio. This setup is ideal for building a more powerful engine that can handle increased boost or a larger displacement.

Manley uses domestic 2618 alloy forgings for these pistons, which are known for their strength and ability to perform under demanding conditions. The pistons feature proven cam and barrel skirt profiles that help manage power output while being easier on your cylinder walls. They also have exacting ring lands and grooves, which helps ensure a better seal for the piston rings, leading to more efficient combustion and improved power. The included wrist pins are made from chrome moly for added durability.

This piston is sold individually, so you'll need to order the correct quantity for your engine. Remember that this part is not CARB approved and cannot be shipped to California.