JE Pistons SUB WRX EJ205 79mm STR 92.5mm Bore CR 8.5 KIT Set of 4 Pistons

If you're rebuilding the engine in your Subaru WRX with the EJ205 engine, you're likely looking for pistons that can handle serious performance. JE Pistons has been a leader in forged racing pistons for over 75 years, and this set is built specifically for your application. These aren't just off-the-shelf parts; they're engineered to give you the best combination of durability and performance for demanding use.

These pistons are forged in the USA from 2618 aluminum, a material known for its high tensile strength, which is crucial for high-performance engines. JE Pistons uses a proprietary Forged Side Relief (FSR) design that helps minimize friction and reduce weight by using a narrower skirt and a shorter wrist pin. Depending on the specific application, they may also feature an accumulator groove to help reduce combustion gas pressure, improving ring seal and preventing flutter. Some applications also include a skirt coating to further reduce friction and wear, which can also help quiet down engine noise.

This kit includes everything you need to get your engine back together: four pistons, high-quality wrist pins, locks, and JE Pro Seal premium piston rings. They are designed for a 92.5mm bore with a 8.5:1 compression ratio. Please note that these pistons are not CARB approved and cannot be shipped to California.