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JE Pistons Ultra Series for Subaru EJ257 features 99.50mm bore forged pistons produced with Aligned Grain Flow forging for exceptional tensile strength. Ultra Series pistons include thermal barrier crown coating, skirt coating, lateral gas ports, optimized pin oiling and high-strength wrist pins to preserve ring seal and durability under high RPM and boost. Made entirely in the USA for high-demand, power-adder builds.
JE Pistons Subaru EJ257 Ultra Series Piston Kit - 99.50mm (Set of 4)
