Usabc Sound Exhaust Muffler Pipe Whistle Blow Off Valve BOV Simulator (S);

The length of the product is only the length of the whistle, and does not include the length of the holder.

About the size selection: First, please measure the inner diameter of your own exhaust pipe.

Compare with the size in the picture below to see which one is equipped with your own car;

Under the premise of proper installation size, try to choose a larger size.

Once the goods arrived, You can use your mouth to blow the air into the tight whistle, and you can hear the whistle. Can blow the product for normal.The size of the sound is different depending on the specifications. The larger the number, the louder the sound.
If it is installed inside the tail throat, it may be that the car's airflow is not large enough. It is not enough to concentrate the whistle. The parents can install it outside and use the wind.
Packaged include: 1x Turbo Sound Simulator Whistle