

Specifications
- Brand
- Go Fast Bits
- Part #
- 5701
- UPC
- 9328022009230

GFB Whistling Trumpet (only for Stealth FX and WRX Hybrid)
$40.41
GFB Whistling Trumpet (only for Stealth FX and WRX Hybrid)BOV Accessories
Key Features
- Replaces the standard trumpet on compatible Go Fast Bits blow-off valves.
- Creates a whistling sound when the blow-off valve releases boost.
- Designed for use with GFB Stealth FX, Deceptor Pro, and Respons TMS valves (over 12psi).
- Requires the blow-off valve to vent primarily through the trumpet for optimal sound.
- Part number 5701.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
If you're looking to change up the sound of your blow-off valve, this Whistling Trumpet from Go Fast Bits is a neat way to do it. It's designed to replace the standard trumpet on specific GFB blow-off valves, like the Stealth FX and WRX Hybrid models, and it makes a distinct whistling noise when the valve releases boost.
To get the best whistling sound, you'll want to make sure your blow-off valve is set up to vent most, if not all, of the air through this trumpet. Valves that are set to vent partially back into the intake might not push enough air through the trumpet to create the whistle. This part is a straightforward swap for the existing trumpet on compatible GFB valves, offering a simple way to customize your car's sound.
Specifications
- Brand
- Go Fast Bits
- Manufacturer Part #
- 5701
- UPC
- 9328022009230
Frequently Asked Questions
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GFB Whistling Trumpet (only for Stealth FX and WRX Hybrid)
