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Manley forged single piston for Subaru WRX STI (EJ257) – 99.5mm bore, STD size, 8.5:1 compression, 83mm stroke – supplied as a single piston unit. Manley’s Platinum Series pistons use 2618 alloy forgings, proven skirt profiles and premium wrist pins; these components are intended for high-performance engine builds requiring durable, precise pistons with professional machining standards.
Manley Subaru WRX STi (EJ257) 99.5mm Bore STD Size 8.5 CR 83mm Stroke Piston w/Ring *SINGLE ONLY*
