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The Manley forged piston set for 1998+ Subaru WRX (EJ205) is supplied as a complete four‑cylinder kit with rings and is built from Manley’s Platinum Series 2618 alloy forgings. The set reflects Manley manufacturing practices—tool‑steel wrist pins, precise fixturing for ring groove squareness, cam and barrel skirt profiles, and exacting ring lands—intended for professional engine builds.
Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 92.5mm +0.5mm Bore 8.5:1 Dish Piston Set with Rings
