JE Pistons forged piston kit for Subaru EJ Series (EJ205), 8.5:1 compression — a set of four pistons for WRX and EJ applications. Made in the USA from 2618 aluminum with JE's FSR forging to reduce friction and mass, the pistons include wrist pins, locks and JE Pro Seal rings. Specified as an inverted dome/dish design for a 3.642 in. bore and -11.70 cc to match the engine's combustion geometry.
JE Pistons SUB WRX EJ205 92.50 mm Bore - 1.287 in. CH, -11.70 CC KIT Set of 4 Pistons