Go Fast Bits Whistling Trumpet (suits all valves)

Rated 3.0 out of 5
Based on 1 review
Go Fast Bits
38 In stock
Turbo Blow Off Valves

🚀 If you were a VIP member, you'd be getting $1.84 in BuildBUX for buying this part 🤷 Join us!


Fastrak Delivery: , Order within hours minutes


*Whistling Trumpet* - A replacement trumpet that gives a different sound.

Part #: 5702

*Screw-in Block Off* - If you have a GFB blow-off valve with two outlets and want to plug one of them, this is the plug to use. It replaces either a trumpet or recirc outlet to effectively disable the venting port. On Hybrid valves for example, it is used to change from 50/50 to full atmosphere or full recirc venting, by plugging the appropriate outlet.

It is also commonly used to plug the trumpet outlet of the Stealth FX and Deceptor Pro in order to pass roadworthiness examinations, by preventing the valve from "easily" being adjusted to atmosphere-venting.

*Inlet Adapter* - A large range of different sized screw-on bases for hose and pipe mounting universal blow-off valves.

*Model-Specific Adapter* - Vehicle specific adaptors for fitting universal blow-off valves

*Outlet Adapter* - A range of different sized screw-on plumb-back (recirc) fittings to suit all universal blow-off valves.

*Hose Plug* - Used for blocking off unused plumb-back hoses with full atmosphere-venting blow-off valves.

*Weld-on Adapter* - Available in a range of different materials and sizes for use in applications where the blow-off valve requires a fitting to be welded to the turbo plumbing.

*Springs* - Adjust the pressure of your BOV with a softer spring.

Whistling Trumpet; For Mach 1 & Respons BOV; For Mach 1, Respons & Deceptor Pro BOV

This item is non application specific. Please verify compatibility before purchase. May require some modification for proper installation.
average rating 3.0 out of 5
Based on 1 review
  • 5 Stars
    0 Reviews
  • 4 Stars
    0 Reviews
  • 3 Stars
    1 Review
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
0% of reviewers would recommend this product to a friend
1 Review
Reviewed by BooSTI, from United States
Verified Buyer
Rated 3 out of 5
Review posted

Not what I was expecting.

So I've read all the reviews on this and seeing that it took quite a bit of boost to get the trumpet to whistle right. The only time it seems to work for me with the respons, was when I had it on full atmosphere. And having a 13 sti on 20lbs of boost i went back to the original trumpet since if your using this for 50% atmo or less it's actually quieter since it extends more than the stock gfb trumpet. Good product but not unless your planning on running your bov without recirculating.

Was this helpful?
Go Fast Bits Whistling Trumpet (suits all valves)
You have successfully subscribed!
This email has been registered