GSC Power Division Exhaust Valve Guide for Mitsubishi 4G63T Manganese Bronze ...

GSC Power Division Exhaust Valve Guide — Mitsubishi 4G63T Upgrade: GSC Power Division manganese bronze exhaust valve guide designed specifically for the Mitsubishi 4G63T. Precision-engineered stopper-style guide with a +0.001" outer diameter for a snug, reliable fit. Material: High-grade manganese bronze for superior wear resistance and thermal conductivity. Design: Stopper-style guide ensures accurate valve location and reduced lateral movement under high RPM and boost. Fitment: For Mitsubishi 4G63T applications. +0.001" OD oversize to correct worn seats or provide a tight press fit. Durability: Long-lasting performance in high-temperature exhaust environments; resists galling and deformation. Installation: Serviceable single-piece guide — sold individually for selective replacement or matched set installation. Ideal for enthusiasts and racers seeking improved valve control, extended head life, and consistent exhaust sealing under demanding conditions.