Now you can let everyone know your ride got the power with Go Fast Bits Whistling Trumpets! This attachment changes the sound of your blow-off valve to create an aggressive whistle, letting everyone know that you're running high boost. These trumpet-shaped valves emit a loud, screeching sound when you drive aggressively, letting everyone know you mean business.

This GFB masterpiece can be used in place of the standard trumpet on all GFB valves, making the whistling sound more readily than any other model. Plus, this accessory will give your car the boost it needs at a slightly higher pitch. Make your car stand out from the crowd and give it an edge on the competition with Go Fast Bits Whistling Trumpets.

Go Fast Bits (GFB) is an Australian-based company renowned for designing and manufacturing premium-quality automotive products that improve vehicle performance, sound, and appearance. Established in 1997, GFB Products have consistently evolved to accommodate the needs of the time. The company philosophy has always been to engineer solutions with the same exceptional precision, machining quality, and reliability that made GFB a trusted industry leader.

GFB's product range has grown to include blow-off/diverter valves, boost controllers, boost gauges, fuel pressure regulators, external wastegates, short shift kits, crankshaft pulleys, and many others. All GFB products are meticulously crafted by the company's dedicated team of engineers in their cutting-edge CNC manufacturing facility. What's more, all GFB Products are engineered in accordance with the ISO 9001 Quality Management System, which means you can rest assured of the quality, performance, and fitment of these products.