• Go Fast Bits Whistling Trumpet (only for Stealth FX and WRX Hybrid) 5701 Photo - Primary
  • Go Fast Bits Whistling Trumpet (only for Stealth FX and WRX Hybrid) 5701 Photo - Close Up
  • Go Fast Bits Whistling Trumpet (only for Stealth FX and WRX Hybrid) 5701 Photo - out of package
  • Go Fast Bits Whistling Trumpet (only for Stealth FX and WRX Hybrid) 5701 User 9
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GFB Go Fast Bits

Go Fast Bits Whistling Trumpet (only for Stealth FX and WRX Hybrid)

Go Fast Bits Whistling Trumpet (only for Stealth FX and WRX Hybrid)

sku: 0WQ20 | mpn: 5701
$62.58
$62.58 $62.58
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12 in stock

Emissions

⚠️ RACING/COMPETITION Use Only

California: Non-compliant parts may be used only on designated closed-course racing vehicles that are never registered for highway use.

Other: Please consult your local statutes and ordinances to ensure compliance with regional emissions standards.

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The ability to change the sound of a blow-off valve is increasingly becoming an important issue with buyers, who want to sound different from everyone else.

In 2004, the Whistling Trumpet was released which emitted a piercing screech when driving aggressively. 

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.

SPECIFICATION

  • Type : Whistling Trumpet
  • Weight : 4 ounces
  • Fitments : Universal
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