Product Information
Part #: 286463. JE Pistons and rings are top - notch billet racing pistons made for Subaru WRX and STI. Originally crafted for high - profile race cars like the Crawford Performance Unlimited AWD Time Attack Subaru and Ken Block's Gymkhana vehicle, they're now available to you. These pistons are 100% CNC machined from high - quality 2618 - T6 wrought aluminum bar stock, perfect for high - horsepower road and drag race engines. They have internal and external bracing for better durability and strength. A unique 'donut dish' crown and under - crown profile help manage heat and reduce stress in high - power Subaru engines. Unlike forged pistons, billet pistons have every surface machined, removing unnecessary weight. This new process cuts weight by up to 32 grams compared to other designs! They come with high - quality 9310 steel wrist pins and JE Pro Seal Rings. For extreme racing, you can upgrade to Diamond Like Carbon (DLC) coated wrist pins. Fitment: JE Piston and Rings SUBARU EJ257 Billet FSR. Features: 100% CNC machined billet piston, designed for high - horsepower Subaru racing engines up to 1200hp, only 392 grams (up to 32 grams lighter than other aftermarket pistons), made from high - quality, certified 2618 - T6 aluminum alloy, internal and external strut braces, premium 9310 steel wrist pins included (.905 x 2.250', DLC upgrade available), JE Pro Seal Piston Rings Included (1.2, 1.2, 2.5mm), Tru Arc locks for easy installation, includes 4 pistons / 4 rings.
Using these JE pistons and rings is straightforward. First, make sure your engine is clean and free of debris. Carefully install the pistons and rings following the provided instructions. The Tru Arc locks make installation easy, but be gentle to avoid any damage. When it comes to high - horsepower racing, these parts are built to last, but it's still important to keep an eye on them. Check the pistons and rings regularly for any signs of wear, especially if you're pushing your engine to the limit. For maintenance, keep the engine well - lubricated. The high - quality materials used in these parts mean they can handle a lot, but good lubrication will extend their lifespan. If you choose the DLC - coated wrist pins for severe racing, they'll offer even better performance, but still need proper care. If you have any questions or notice any issues, don't hesitate to reach out to a professional mechanic.
