Go Fast Bits Blow Off Valve Whistling Trumpet Low Boost Attachment Promo1000 ACT Difference: 100% clamp load

ACT Difference: 100% clamp load tested and dynamically balanced for smooth high-RPM reliability

Their compact size and vibrant purple finish add both style and function to your ride

Made from CNC-turned aluminum

Installing the Cusco Rear Trailing Arm is a straightforward upgrade for those familiar with suspension work

Go Fast Bits Blow Off Valve Whistling Trumpet Low Boost Attachment Promo1000 ACT Difference: 100% clamp loadUpgrade your Subarus blow off valve sound with the Go Fast Bits Blow Off Valve Whistling Trumpet Low Boost Attachment. Designed specifically for low boost applications, this trumpet attachment enhances the iconic whistle sound, making your ride stand out with a sharper, more noticeable tone. Its ideal for enthusiasts who want a unique audio signature without compromising performance. This modified version of the Whistling Trumpet works better than the