JE Pistons 2012+ Subaru FA20E/FA20F Bore 86.25, Size +0.25, Stroke 86, 10.6:1 C/R -10.0CC (Set of 4)

JE Pistons has been a leader in forged racing pistons for over 75 years, known for applying their experience to a wide range of performance applications. This specific set of pistons is engineered for the 2012 and later Subaru FA20E and FA20F engines, offering an updated bore of 86.25mm with a +0.25mm size, a 10.6:1 compression ratio, and a -10.0cc dome volume. They are built to provide the ultimate combination of durability and performance for high-demand situations.

These pistons are forged in the USA using 2618 aluminum, a material chosen for its high tensile strength, which is crucial for engines pushed to their limits. They feature JE's proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by reducing skirt width and saving weight with a shorter wrist pin. Depending on the specific application, an accumulator groove may be included to help reduce pressure from combustion gases, improving ring flutter and enhancing ring seal for consistent power delivery. Some applications also include a skirt coating to further reduce friction and wear on the piston skirts and cylinder walls, which also helps lower operating noise.

This set includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings, ensuring you have the essential components for installation. These pistons are designed specifically for the FA20E/FA20F engine to provide optimized performance and durability. Please note that this part is not CARB approved and cannot be shipped to California.