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Blow-off Valves
GFB has the largest range of blow-off valves on the market, from the silent Plumb Back type to ear shattering dump valves, we have a product to suit your needs.
Mach 1
One of the loudest valves in our range, the Mach 1 will really let people know you're coming!
Hybrid
The best of both worlds, atmosphere and plumb back venting for cars with sensitive air-flow meter systems.
Basic
Large flow capacity, suitable for BIG horsepower.
Stealth FX
GFB's patented Stealth FX is the only blow-off valve in the world to allow easy adjustment from silent to loud or anywhere in between!
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!
