Manley Performance Race Master 28mm Exhaust Valves | 1990-1999 Mazda Miata BP056 (11101-8)

Race Master 28mm Exhaust Valves for 1990-1999 Mazda Miata BP056 Engines by Manley Performance

Manley's Race Master Exhaust Valves are constructed from XH-426 Stainless Steel for unparalleled durability. Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance. The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.

Measurements

• Head Diameter: 28mm
• Stem Diameter: 6mm/.2362"
• Installed Height:
• O/A Length: 101.52mm
• Tip Length: 3.5mm
• Underhead Angle / Radius: 25°x11/32”
• Margin: .065”
• Seat Width: .080”
• Top of Head: 20° Dish
• Weight: 100g

Applications

1990-1999 Mazda Miata BP056

What's In The Box?

• 8 - Valves

Warranty

• Limited Manufacturers Warranty