Universal Aluminum Turbo Sound Exhaust Muffler Pipe Whistle Car / Motorcycle Simulator Whistler, Size: M, Outside Diameter: 23mm, Size: M (Black), Size: M (Gold), Size: M (Blue), Size: M (Red), Size: M (Silver)

1. Easy to install.
2. Beautiful, very stylish, low cost, is to decorate the car.
3. Made of light weight aluminum alloy material.
4. Durable and reliable.
5. Specifications (whistle caliber): M inside diameter: 21MM; outside diameter: 23mm; Length: 10cm.