JE Pistons

• Subaru WRX STI (EJ20 / EJ25): JE Pistons FSR Forged Piston Kit, 100.00mm bore, -15.10cc dish
• More parts for the WRX STI (GD), STI (GR), STI (GV) and STI (VA)

• Forged pistons: the JE kit above, or every brand in pistons.
• Pair with the rest of the bottom end: rods, cranks and bearings and head studs and engine fasteners, such as the ARP2000 head stud kit for the EJ20 / EJ25 DOHC.

• Engine code: the kit is listed for the WRX STI EJ20 and EJ25 engine family, and the listing notes the EJ257 STI cylinder head.
• Bore size: the pistons are supplied at 100.00mm. Check this against your block's current or planned bore size.
• Dish volume: the -15.10cc dish sets the static compression ratio together with your head gasket thickness, deck height and chamber volume, so run the numbers for your build before ordering.

Fitting a piston kit means a full engine rebuild. Your machine shop must confirm the final bore size and piston to wall clearance for your block. Check the product listing for what the kit includes. Installation by a professional is recommended.

Where can I buy JE Pistons forged pistons in Australia?
Chicane Australia sells JE Pistons forged piston kits and ships Australia-wide from the NSW Central Coast. Contact our team if you need help confirming the bore size and dish volume for your build.

Which engine is JE Pistons kit 286463 for?
It is listed for the Subaru WRX STI EJ20 and EJ25 engine family, with a 100.00mm bore and a -15.10cc dish.

What compression ratio will the -15.10cc dish give?
It depends on your head gasket thickness, deck height and combustion chamber volume. Use a compression calculator with your engine's exact dimensions before you order.

What does FSR mean?
FSR stands for Forged Side Relief. The design narrows the piston skirt, which lowers friction compared with a full skirt.

Will my block need machining?
The pistons are supplied at a 100.00mm bore. Your machine shop must confirm the final bore size and piston to wall clearance for your block.