The Manley Platinum Series forged piston set for 1998–2005 Subaru EJ20 WRX (92.50mm +0.5mm bore, 8.5:1 dish) uses 2618 alloy forgings and premium production methods aimed at professional engine builders. Signature features include tool steel wrist pins, precise cam and barrel skirt profiles and exacting ring land and groove machining to enhance ring seal and durability under demanding conditions.
Manley 98-05 Subaru EJ20 WRX 92.50mm +.5mm Bore 8.5:1 Dish Platinum Series Piston Set w/Rings