The sound of boost being released.

Blow off valves release excess boost pressure when the throttle closes, helping protect turbochargers while delivering the unmistakable sound many enthusiasts love.

At Fifty9 Performance, we supply performance blow off valves in the UK designed to improve boost control and enhance turbocharged performance.

• Atmospheric Blow Off Valves - release boost pressure with signature sound
• Recirculating Valves - maintain airflow within the intake system
• Performance Dump Valves - improved boost management
• Vehicle Specific Valve Kits - designed for precise installation

If you are looking for blow off valves, dump valves or turbo pressure release valves, explore our range and upgrade your turbo system.