Wiseco Subaru WRX 4v R/Dome 8.4:1 CR 92.5 Piston Shelf Stock Kit

Wiseco is known for making well-built engine components for demanding applications. For your 1998-2011 Subaru Impreza, this set of four forged pistons is designed for serious engine builds where durability and performance are critical. These pistons feature an 8.4:1 compression ratio and a 92.5mm bore, making them a solid choice for rebuilding or upgrading your EJ20 engine.

Crafted from 2618 aluminum in the USA, these pistons are forged and machined for improved tensile strength. They include precision ring grooves, an anti-detonation groove, and other features to enhance ring seal. The ArmorGlide skirt coating helps reduce friction and noise, while also resisting seizure. The fully machined crown and forced pin oiling further contribute to their ability to handle heavy to severe duty performance use.

This kit includes everything needed to replace the pistons in your Subaru Impreza's EJ20 engine. Please note 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.