JE Pistons SUB EJ25 DOHC 11.5:1 KIT Set of 4 Pistons

Forged from 2618 aluminum, these JE Pistons are built to handle the demands of high-performance Subaru EJ25 DOHC engines. The 11.5:1 compression ratio is designed to optimize power output for engines built for serious use, whether on the track or for spirited street driving. JE Pistons brings over 75 years of experience to the table, ensuring each piston is crafted for both durability and performance.

JE Pistons utilizes a proprietary Forged Side Relief (FSR) forging design. This design helps minimize friction and power loss by reducing skirt width, and it also saves weight by using a shorter wrist pin. Depending on the specific application, these pistons may also feature an accumulator groove to help manage combustion gas pressure, which can reduce ring flutter and improve ring seal for more consistent power delivery. A skirt coating, also application-dependent, further reduces friction and wear on the piston skirts and cylinder walls, contributing to quieter operation and longer life. Every component is forged and machined in the USA, ensuring a well-built product ready for demanding applications.

This kit includes everything you need to get your engine rebuilt: four pistons, high-quality wrist pins, locks, and JE Pro Seal premium piston rings. These pistons are specifically designed for the EJ25 engine to provide an optimized balance of performance and durability. Please note that this part is not CARB approved and cannot be shipped to California.