Description
Enhance your blow-off valve’s sound with the Go Fast Bits GFB Whistling Trumpet Part 5702, designed to fit all valves except the DV+ model. This trumpet replaces the standard component and produces a more readily audible whistle at higher boost and RPM levels, with a slightly higher pitch compared to the 5701 model. Its design encourages airflow through most of the vents, ensuring the whistling effect is prominent when the valve is set to vent most of the air. This allows enthusiasts to customize their vehicle’s sound profile, making their setup stand out from others. The 5702 is ideal for low boost applications and offers a simple way to modify the auditory experience of your vehicle’s blow-off system. Proper installation requires the valve to vent most of the air, as valves set to 50/50 venting typically do not generate enough velocity for the whistle to occur. This product is versatile, suitable for a wide range of vehicles, and enhances the sound without affecting the overall performance of your performance upgrade.
Features:
- Designed to replace standard trumpets on all GFB valves except DV+
- Produces a more audible whistle at high boost and RPM levels
- Higher pitch sound compared to the 5701 model
- Optimized for valves venting most air for a prominent whistle
- Universal fit suitable for low boost applications



























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