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JE Ultra Series forged piston set for Mitsubishi 4G63 used in 2001–2007 Evolution VII–IX models, sized to an 86mm bore with 10.0:1 compression as a four‑piston kit. Ultra pistons use Aligned Grain Flow forging, thermal barrier crown coating, skirt coatings and lateral gas ports to support high‑pressure, high‑RPM environments. The set includes robust wrist pins and is manufactured in the USA.
JE Pistons Ultra Series Mitsubishi EVO 7-9 4G63 86mm Bore 10.0:1 CR Set of 4 Pistons
