- Makes a Hissing Noise Like Turbo Spooling
- Does Not make a Blow off Valve Noise - Sorry Not possible
- Please no bad feedback if not happy - 100% Refund
- Again, this product makes a hissing noise like a turbo on most cars
- Exhaust Tip cannot be larger than 3 inches or it may not work
Exhaust BOV â Turbo Sound Exhaust BOV â Turbo Sound
General: - Do you want your car to sound like it has a turbo without spending 00 on an actual turbo. The Exhaust BOV installs on your exhaust tip and makes it sound like a BOV from turbo every time you accelerate and let go of the gas pedal. Sound will vary between engines and mufflers. Best results are produced on a 3â exhaust tip.Listen to Exhaust BOV