JE Ultra Series forged pistons for the Subaru FA20DIT are a set of four 86.25mm bore dome pistons with 10.0:1 compression. Ultra Series applies JE’s Aligned Grain Flow forging for superior tensile strength and includes thermal barrier crown coating, skirt coating, lateral gas ports, optimized pin oiling and durable wrist pins—features aimed at boosted, high-stress engine environments.
JE Pistons Ultra Series Subaru FA20DIT 86.25mm Bore 10.0:1 CR Set of 4 Pistons