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This JE Pistons forged 4-cylinder kit is built for Subaru EJ-series applications with a 100.00mm bore and +0.25 oversize pistons with a 9.5:1 compression ratio. JE combines 75+ years of forging experience to deliver engine-specific forged pistons made in the USA from 2618 alloy, with proprietary forging features, optional accumulator grooves and skirt coatings where applicable. Kit includes wrist pins, locks and JE Pro Seal rings for race-capable durability.
JE Pistons SUB STI EJ257 Block w/ EJ20 Head 100mm Bore 0.25 Oversize CR 9.5 KIT Set of 4 Pistons
