Upgrade your Mitsubishi 4G63 engine with the Supertech GDE-MI66-E-8 Exhaust Valve Guide set. Designed specifically for vehicles equipped with the 4G63 engine, these valve guides feature a 6.6mm stem for optimal performance and reliability. Crafted from high-quality materials, they ensure a perfect fit and enhanced durability, making them an essential component for any engine rebuild or performance enhancement. Each set includes eight valve guides, allowing you to replace all exhaust guides simultaneously for a complete overhaul. Engineered with precision, these guides help maintain proper valve alignment and reduce wear, promoting better engine efficiency. Trust Supertech to deliver superior products that meet the demands of both street and track applications. Elevate your engine's performance with this reliable exhaust valve guide set. <b>Features:</b> * Designed for Mitsubishi 4G63 engines * Includes a complete set of 8 valve guides * Features a 6.6mm stem for optimal performance * Crafted from high-quality materials for durability * Helps maintain proper valve alignment and reduces wear