Wiseco Subaru WRX 4V R/Dome 8.4:1 Cr 92.5 Piston Shelf Stock

If you're rebuilding the engine in your 1998-2011 Subaru Impreza for performance, a solid set of pistons is key. These Wiseco pistons are built from 2618 aluminum, which is known for its strength, making them a well-built choice for demanding engine builds. They feature a dome design that results in an 8.4:1 compression ratio, suitable for boosted applications where you need to manage detonation.

Wiseco machines these pistons right here in the USA, paying close attention to details like precision ring grooves and anti-detonation features to ensure a good seal and reliable performance. They also come with an ArmorGlide skirt coating. This coating helps reduce friction and noise, and it's designed to resist seizing, which is important when you're pushing your engine hard. The forced pin oiling design also helps keep the piston pin lubricated under high stress.

This listing is for a single piston. Make sure to order the correct quantity for your engine. Please note that these pistons are not CARB approved and cannot be shipped to California.