Supertech Mitsubishi 4G63/4G63T Inconel Exhaust Valve - +2mm Oversize - Set of 8

These Supertech exhaust valves are made from Inconel, a high-nickel alloy known for its exceptional strength and resistance to extreme heat. Specifically designed for the Mitsubishi 4G63 and 4G63T engines, this set includes eight valves that are 2mm larger than stock. This oversize design can help improve airflow into the cylinder, potentially boosting performance, especially in modified engines.

The Inconel material is crucial for exhaust valves because they face intense temperatures and pressures. Its ability to withstand these conditions without deforming or degrading means your engine can operate reliably under demanding use. The +2mm oversize feature is a common modification for tuners looking to maximize the breathing capabilities of the 4G63 platform. This set is a well-built option for anyone rebuilding or significantly upgrading their 4G63 or 4G63T cylinder head.