Car Sound Whistle Tail Throat Muffler Exhaust Pipe Whistle Blue

Beautiful appearance, wonderful choice for auto car modification. Made of quality aluminum alloy material, and to use. Easy installation, directly replacement, installed on a modified car . Condition: 100% Brand New Item Type: Sound Whistle Material: Aluminium Alloy Color: Blue Size: S, M(Optional) Installation Instructions:  Clamp on the tail end of the exhaust pipe. Tips: 1. If the car is installed inside the tail throat, it may be that the car s is not large enough. It is not enough to concentrate the whistle. The parents can install it outside and use the wind. Because the wind s is bigger than the car s , it s easier to blow. 2. Product inspection can use the mouth to blow the into the tight whistle, and you can hear the whistle. If you can blow the product for normal products, you can contact us to return the goods. It is the problem of the exhaust force of the car that can be blown and not rang after installation. 3. About the size selection: First, please measure the inner Diameter of your own exhaust pipe. Under the premise of proper installation size, try to choose a large size. For vehicles with small displacement, choose a large size, and a large displacement, you can choose a small one, because the principle of whistle sound is by , the displacement is large, the bigger the whistle, the easier it is to make a sound.