Available for nearly all turbocharged Japanese sports cars, Blitz dump valves are supplied with a full fitting kit and interchangeable trumpets for different sounds. The main purpose of the dump valves is to improve the response of the turbo by quickly releasing the boost pressure before the turbo stalls. They are made from polished aluminium with a brass piston and a rubber diaphragm, meaning they can easily cope with boost pressures of over 2 bar (with the correct inner spring).

Blitz dump valves also feature "Dual Drive" for maximum response, a small port for low boost and a larger port for high boost. They are also tension adjustable.

All dump valves come with a comprehensive fitting kit tailor made to fit your vehicle.