The Wiseco Mitsu Evo 4-9 4G63 Asymmetric Skirt Bore 85.50mm - Size +.020 - CR 9.5 Piston Set is a high-performance forged racing piston designed for serious Mitsubishi Evo 4-9 4G63 engine builds. Part of Wiseco's Professional Series, these pistons are engineered for maximum durability and performance in heavy-duty and severe race applications. Constructed with custom-level features and supplied with premium rings, they provide enhanced strength and reliability under demanding conditions. Their asymmetric skirt design optimizes piston stability and reduces friction, contributing to improved power output and engine longevity.
This piston set is compatible with Mitsubishi Evo models from 2003 to 2007 equipped with the 4G63 engine. It is intended for use in race, performance, or severe duty builds where high compression and durability are required. The set is a direct replacement for stock pistons, offering a bolt-on upgrade that supports increased performance and boost levels. Suitable for track, racing, or high-performance street applications, these pistons help remove limits and unlock the full potential of your engine.
