JE Pistons NISQR25 10.5 89.5KIT Set of 4 Pistons

This JE Pistons NISQR25 10.5 89.5KIT includes a full set of four forged pistons, high-quality wrist pins, locks, and JE Pro Seal premium piston rings. These pistons are built for performance applications, specifically designed for the Nissan QR25DE engine with a 3.524-inch bore and a 10.50:1 compression ratio.

JE Pistons are forged in the USA using 2618 aluminum, a material chosen for its high tensile strength, which is essential for the demands of high-performance engines. The design incorporates a proprietary Forged Side Relief (FSR) forging, which helps minimize friction and power loss by reducing skirt width and using a shorter wrist pin for additional weight savings. Depending on the specific application, these pistons may also feature an accumulator groove to reduce combustion gas pressure, improving ring seal and consistent power, and a skirt coating to reduce friction and wear on the piston skirts and cylinder walls, while also lowering operating noise.

This set is engineered and machined 100% in the USA, reflecting JE Pistons' extensive experience in creating durable and high-performing forged pistons. While these pistons are designed for significant performance gains, please note they are not CARB approved and cannot be shipped to California. For optimal installation and performance, always refer to the manufacturer's detailed instructions.