Supertech Performance MAEVN-1100-8 Black Nitrided Exhaust Valve Set for Mazda Miata 1.6L

These performance exhaust valves are manufactured from one-piece forged stainless steel, providing exceptional strength and durability for high-performance applications.

Key Specifications:

• Head Diameter: 26.20mm (stock size)
• Stem Diameter: 5.94mm
• Length: 105.35mm
• Material: Black Nitrided Stainless Steel
• Groove Type: Single Groove
• Quantity: 8 valves per set

Advanced Manufacturing & Materials:

• One-piece forged design using EV8 (21-4N) stainless steel alloy for superior reliability
• Black nitride coating provides a harder surface and smoother finish, reducing friction and extending valve life
• Black nitride treatment is applied to the entire valve for complete protection
• Backed by over 20 years of manufacturing experience and intensive testing with professional engine builders

Supertech Performance valves are precision-engineered to meet or exceed OEM specifications while delivering improved airflow and performance. These valves are ideal for engine rebuilds, performance upgrades, or routine maintenance on Mazda Miata 1.6L engines. For optimal results, Supertech recommends replacing valves together with new valve springs and valve stem seals.