JE Pistons SUB WRX EJ205 79mm STR 93mm Bore CR 8.5 KIT Set of 4 Pistons

If you're looking to rebuild or significantly upgrade the engine in your Subaru WRX with the EJ205 engine, this set of four forged pistons from JE Pistons is a solid choice. JE Pistons has been making high-performance engine components for over 75 years, and these pistons are built to handle the demands of performance driving. They are forged and machined entirely in the USA, using 2618 aluminum, which gives them the high tensile strength needed for demanding applications.

This kit includes JE Pistons' proprietary Forged Side Relief (FSR) design, which helps reduce friction and weight by using a narrower skirt and a shorter wrist pin. Depending on the specific application, you might also find an accumulator groove, which helps manage combustion gas pressure for better ring seal and consistent power. Some applications also feature a skirt coating that further reduces friction and wear on the cylinder walls, while also cutting down on operating noise. These pistons are designed specifically for the EJ205 engine, ensuring optimized performance and durability.

This set comes complete with high-quality wrist pins, locks, and JE Pro Seal premium piston rings, so you have the essential components needed for installation. It's important to note that these pistons are not CARB approved and cannot be shipped to California. For installation, always refer to the manufacturer's detailed instructions to ensure proper fitment and performance.