Supertech Mitsubishi 4G63/4G63T Inconel Exhaust Valve - +1mm Oversize - Single (Drop Ship Only)

This is a single Supertech Inconel exhaust valve designed for Mitsubishi 4G63 and 4G63T engines. It's a +1mm oversize replacement, meaning it's slightly larger than the stock valve to help restore compression or improve performance in rebuilt engines.

Inconel is a high-nickel alloy known for its exceptional strength and resistance to extreme heat, making it a solid choice for exhaust valves that endure significant thermal stress. This material helps prevent valve distortion and burnout, especially in high-performance or heavily modified applications where temperatures can get very high. The +1mm sizing is useful when the valve seat or the valve guide has been machined to accommodate a larger valve, or if you're replacing valves that have worn down.