JE Pistons and Rings 100 Bore 83mm Stroke 8.5:1 Comp Subaru WRX / STI EJ257 2004-2021

Part #: 291064. JE piston and ring sets are expertly crafted for extreme scenarios, even professional competitions in your Subaru WRX and STI. In high - demand situations like high compression ratios, high boost, or heavy nitrous use, the 2618 aluminum alloy with high tensile strength is a must. Fitment: Ideal for SUBARU 2004+ IMPREZA STI, 2005+ FORESTER XT, LEGACY GT, and 2006+ WRX EJ257. Features: Made of 2618 T6 high - tensile forged aluminum. The dome and dishes have smooth radii for great flame travel. Ring widths are 1.2 x 1.2 x 2.5mm. Comes with a.905 x 2.500 straight - wall carbon steel wrist pin. Pin fitting and wire locks are included. Each 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 any debris before installation. When installing, follow the standard engine assembly procedures. Ensure proper alignment of the pistons and rings in the cylinders. As for maintenance, it's important to change your engine oil regularly as recommended by your vehicle's manual. Check the pistons and rings for wear during routine engine inspections. If you notice any abnormal noises or a decrease in engine performance, have the pistons and rings checked by a professional mechanic. Remember, these parts are designed for high - performance use, so take extra care when handling and using them.