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Manley's Platinum Series piston set is specified for 1998–2005 Subaru WRX EJ20 engines, 92.50mm bore. These forgings use domestic 2618 alloy and incorporate proven cam and barrel skirt profiles, tool steel wrist pins, and moly skirt coatings on select SKUs. The construction and machining processes emphasize precise ring land and groove control to support reliable ring seal and sustained performance in tuned engines.
Manley 98-05 Subaru WRX EJ20 92.50mm Bore 8.5:1 CR -16cc Dish 79mm Stroker Piston Set (E/D)
