GFB has the largest and smartest range of diverter and blow-off valves on the market, from the silent Plumb Back type to ear shattering dump valves, the TMS Turbo Management Solution range has a product to suit your needs.

Respons As the name suggests, the GFB Respons is designed specifically with the aim of improving throttle response and reducing turbo lag.

Deceptor Pro GFB's Deceptor Pro - The world's first in-car electronically adjustable blow-off valve. Proportional volume control from the driver's seat!

Mach 1 One of the loudest valves in our range, the Mach 1 will really let people know you're coming!

SV45 SV45 TMS race dump valve.  Best choice for Turbo or supercharged engines over 500hp where recirculation venting is not required

DV+ T9301 A new range designed to replace the stock Bosch diverter valve on European applications like Audi, Ford and VW but with the GFB TMS advantage.