JE Pistons Ultra Series Subaru EJ257 99.75mm Bore 9.5:1 CR Set of 4 Pistons - 361331

JE Pistons Ultra Series pistons for sport compact and euro applications combine all of the best, most desirable piston features, such as thermal barrier crown coating, lateral gas ports, thick-wall wrist pins, and a revolutionary new forging technology for the ultimate in strength. Premium, gas-nitrided carbon steel rings are included.