JE Pistons and Rings 99.75 Bore 83mm Stroke 8.5:1 Comp Subaru WRX / STI EJ257 2004-2021

Part #: 296352. JE piston and ring designs are crafted specifically for extreme - performance needs, perfect for professional competition in your Subaru WRX and STI. In high - stress scenarios with high compression ratios, heavy boost, or significant nitrous usage, the 2618 aluminum alloy with high tensile strength is a must - have. Fitment includes SUBARU 2004+ IMPREZA STI, 2005+ FORESTER XT, LEGACY GT, and 2006+ WRX EJ257. Key features: 2618 T6 high - tensile forged aluminum; dome and dishes with smooth - flowing radii for great flame travel; 1.2 x 1.2 x 2.5mm ring widths;.905 x 2.500 straight - wall carbon steel wrist pin provided; pin fitting and wire locks included; comes with 4 pistons and 4 rings.

Using these JE pistons and rings is straightforward. First, make sure your Subaru WRX or STI engine is clean and ready for installation. Carefully fit the pistons and rings according to the engine's specifications. When installing, handle the parts gently to avoid any damage. For maintenance, regularly check the pistons and rings for signs of wear. If you notice any unusual noises or a drop in performance, it might be time to inspect them. Keep the engine well - lubricated to ensure smooth operation. Avoid using the engine under extreme conditions for long periods without proper cooling, as this can put extra stress on the pistons and rings.