JE Pistons and Rings 99.75 Bore 79mm Stroke 8.5:1 Comp Subaru WRX / STI EJ257 2004-2021

Part #: 296348. JE piston and ring designs are expertly crafted for extreme applications, even professional competitions, in your Subaru WRX and STI. In high - stress scenarios 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: Made from 2618 T6 high - tensile forged aluminum. The dome and dishes have smooth - flowing 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. The set has 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 in good condition before installation. Carefully place the pistons and rings in the right positions according to your engine's specifications. When using your vehicle, avoid sudden, extreme acceleration right away to let the pistons and rings properly settle in. For maintenance, regularly check your engine oil and coolant levels. Change the oil at the recommended intervals to keep the pistons and rings lubricated. If you notice any strange noises or performance issues, have your engine inspected by a professional as soon as possible. This will help ensure the long - lasting performance of your JE pistons and rings.