JE Pistons and Rings 99.75 Bore 8.5:1 Comp Subaru WRX / STI EJ257 Block W/ EJ20 Head 2004-2021

Part #: 296349. JE piston and ring sets are expertly crafted for extreme - performance needs, perfect for professional competition in your Subaru WRX and STI. High compression ratios, high boost, or heavy nitrous use call for the strong 2618 aluminum alloy. Fitment includes SUBARU 2004+ IMPREZA STI, 2005+ FORESTER XT, LEGACY GT, and 2006+ WRX EJ257. Features: 2618 T6 high - tensile forged aluminum; smooth - flowing radii on dome and dishes for great flame travel; 1.2 x 1.2 x 2.5mm ring widths; comes with.905 x 2.500 straight - wall carbon steel wrist pin; pin fitting and wire locks are included; a set has 4 pistons and 4 rings.

Using these JE pistons and rings is straightforward. First, make sure your engine is clean and free of debris before installation. Carefully place the pistons and rings into the engine block, following the correct orientation. Use the provided wrist pin, pin fitting, and wire locks as instructed. When it comes to maintenance, regularly check the pistons and rings for signs of wear, especially if you're using high boost or nitrous. After long - term use or high - stress driving, it's a good idea to inspect the components for any damage. If you notice any abnormal noise or performance issues, stop using the engine and have it checked by a professional. Keep the engine well - lubricated to ensure smooth operation of the pistons and rings.