JE Pistons Subaru EJ Series Piston = 92.5mm Bore - 1.287in Ch - -3.80cc - Right

JE Pistons has a reputation for building strong, fully-featured forged pistons, and their Ultra Series is a prime example. This particular piston is designed for Subaru EJ Series engines, specifically the EJ205, and is built to handle the extreme cylinder pressures that come with high-boost applications. It features JE's proprietary Aligned Grain Flow forging technology, which maximizes tensile strength to withstand the stresses of performance engine builds.

Beyond its robust forging, this piston includes custom-level features often found in race engines. The thermal barrier crown coating reflects heat back into the combustion chamber, helping to lower piston crown temperatures and improve exhaust gas scavenging. For reduced friction and wear on the piston skirts and cylinder walls, a skirt coating is applied, which also helps quiet down operation, especially during cold starts. Lateral gas ports are included to help maintain a strong ring seal even under high RPM and boost conditions, ensuring consistent power delivery. The piston also features optimized oiling for the wrist pin to reduce heat and friction, and it comes with high-strength, thick-wall wrist pins made by Trend Performance.

This piston is made 100% in the USA. Please note that this part is not CARB approved and cannot be shipped to California.