GFB T9404 VTA Blow Off Valve Electronic Diverter Valve with Whistling Trumpet

The GFB (Go Fast Bits) T9404 VTA is a bolt-on performance blow off valve, also called a diverter valve. It is made for turbocharged vehicles that have an electronic factory diverter valve. It replaces the plastic factory valve components and gives a loud, distinctive blow off sound.

Key Features:

• Direct-fit replacement for the factory electronic diverter valve
• The ECU still controls when the valve vents
• Adjustable spring pre-load lets you fine tune how the valve vents and how long it vents for
• The removable trumpet lets you set the valve up for a whistling or "whoosh" sound
• Uses boost pressure to hold the piston shut, so it cannot be blown open however much boost it sees
• Supplied as a single valve

GFB recommends that a qualified automotive technician fit this product. Installation involves removing the factory diverter valve and fitting the T9404 in its place.