JE Pistons and Rings 100 Bore 79mm Stroke 8.5:1 Comp Subaru WRX / STI EJ257 2004-2021

Part #: 291062. JE piston and ring designs are tailor - made for extreme situations, even professional competitions for your Subaru WRX and STI. In high - demand scenarios like high compression ratios, maximum 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: Crafted from 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 contains 4 pistons and 4 rings.

Using these JE pistons and rings is straightforward. First, make sure your engine is clean and in good condition before installation. When installing, handle the pistons and rings carefully to avoid any damage. The wrist pin and wire locks should be installed as per the provided instructions. For day - to - day use, keep an eye on your engine's performance. If you notice any unusual noises or reduced power, it could be a sign that something's wrong. For maintenance, regularly check the engine oil and change it at the recommended intervals. This will help keep the pistons and rings lubricated and in good working order. Avoid using your vehicle in extremely harsh conditions for extended periods as it can put extra stress on the pistons and rings. And always follow the manufacturer's guidelines for your Subaru WRX or STI.