JE Pistons and Rings 99.5 Bore 79mm Stroke 8.5:1 Comp Subaru WRX / STI EJ257 2004-2021

Part #: 291061. JE piston and ring sets are expertly crafted for extreme - performance scenarios, even professional competitions in your Subaru WRX and STI. In high - stress situations with high compression ratios, maximum boost, or heavy nitrous use, the 2618 aluminum alloy with high tensile strength is a must. 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 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 engine is clean and ready for installation. Carefully place the pistons and rings in the right position according to your vehicle's engine layout. When installing, handle the parts gently to avoid any damage. For long - term use, keep an eye on the engine's performance. If you notice any unusual noises or a drop in power, it could be a sign that the pistons or rings need checking. Regularly change the engine oil as recommended by your vehicle's manual. This helps to keep the pistons and rings lubricated and reduces wear. Store the pistons and rings in a dry place when not in use to prevent rusting. Also, make sure to follow all safety procedures when working on your engine.