Supertech Mitsubishi 4B11 EVO X Black Nitrided Intake Valve - +1mm Oversize - Set of 8

The Supertech Mitsubishi 4B11 EVO X Black Nitrided Intake Valve is a high-performance replacement component designed for Mitsubishi EVO X engines. Crafted with black nitrided surface treatment, this intake valve offers enhanced durability, corrosion resistance, and reduced friction. The +1mm oversize specification allows for increased airflow and improved combustion efficiency, making it suitable for performance upgrades. Built to meet or exceed OEM standards, this valve ensures reliable operation under demanding conditions while supporting increased horsepower and torque.

This set of eight intake valves is compatible with Mitsubishi 4B11 engines found in EVO X models from 2008 to 2015. It is intended for use in engine rebuilds, performance tuning, or racing applications where precise fitment and durability are critical. Designed as direct replacements, these valves are ideal for enthusiasts seeking to optimize airflow and engine performance. Installation involves standard valve replacement procedures, and the set includes all necessary components for a complete upgrade. Suitable for street, track, or racing use, these valves deliver consistent, high-quality performance.