Skip to content
🏁 Memorial Day Sale: Up to 25% Off Select Brands | Shop Now 🏎️
🏁 Memorial Day Sale: Up to 25% Off Select Brands | Shop Now 🏎️
GFB Whistling Trumpet (only for Stealth FX and WRX Hybrid)

GFB Whistling Trumpet (only for Stealth FX and WRX Hybrid)

SKU GFB5701
by Go Fast Bits
Save $ 4.49 Save $ 4.49
$ 44.90
$ 44.90 - $ 44.90
$ 44.90
$ 40.41
$ 40.41 - $ 40.41
$ 40.41
The 5701 can be used in place of the standard trumpet on GFB valves (Part numbers T9003 & T9503), and will make a whistling sound. However, it is necessary to run the valve so that all (or most) of the air vents through the trumpet ? Respons valves will typically not generate the velocity required to whistle when set to 50/50 venting.