
Manley forged piston set for 2003–2006 Mitsubishi Evo 8/9 (4G63T/4G63) lists 85.5mm pistons oversized by +0.5mm with flat tops and a 10.0/10.5:1 compression note, supplied with rings. Manley’s Platinum Series description cites 2618 alloy forgings, chrome-moly wrist pins and moly skirt coatings on select SKUs, plus precise machining practices; the overview compresses those supported benefits for builders seeking forged pistons for Evo applications.
Manley 03-06 Evo 8/9 4G63T/4G63 85.5mm +.5mm Over Bore 10.0/10.5:1 Flat Top Pistons w/ Rings