Supertech Performance MAIVN-1208-1 Black Nitrided Intake Valve for Mazda Miata - 1.8L

The Supertech Performance MAIVN-1208-1 is a high-performance intake valve engineered from one piece of forged stainless steel for maximum strength and durability. This standard flow valve features a 33.00mm head diameter, 5.97mm stem diameter, and 102mm length, making it a direct replacement for Mazda Miata 1.8L engines.

Key Features:

• One-piece forged stainless steel construction for ultimate strength
• Special heat treatment process ensures optimal hardness for performance engines
• Black nitride coating for superior wear resistance, popular in Japanese motors
• Microhardness exceeds 800HV minimum while maintaining good ductility
• Nitrided layer adheres at microscopic level, preventing flaking or breaking under impact
• Black nitride coating applied to entire valve surface

Upgrading to performance valves is an effective way to increase airflow and overall engine performance. Supertech provides the racing market with superior valves and valve train components for virtually every type of racing, from drag racing to road racing applications. This valve is ideal for engine rebuilds, cylinder head upgrades, and high-performance applications.