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Manley forged piston set for 2004+ Subaru WRX/STi stroker builds, 83mm stroker with 99.5mm standard bore and 9.8:1 dish for extreme-duty applications. Part of the Platinum Series, these pistons use domestic 2618 alloy forgings, precise cam and barrel skirt profiles, and tool-steel wrist pins to support strong ring seal and durability. They suit professional engine builds and high-demand tuning work.
Manley 04+ Subaru WRX/STi 83mm Stroker 99.5mm STD Size Bore 9.8:1 Dish Extreme Duty Piston Set
