Features: 1.Built with high quality aluminum alloy material for maximum durability and stability. 2.This exquisite and special design makes your car cool and beautiful, which decorates your car perfectly. 3.Easy installation, direct replacement, can be mounted on the exhaust pipe. 4.This is a whistle that simulates the sound of a turbo pressure relief, making a sound through the air flow from the exhaust pipe. 5.Professional manufacturing, exquisite workmanship, long service life. Specification: Features: Built with high quality aluminum alloy material for maximum durability and stability. This exquisite and special design makes your car cool and beautiful, which decorates your car perfectly. Easy installation, direct replacement, can be mounted on the exhaust pipe. This is a whistle that simulates the sound of a turbo pressure relief, making a sound through the air flow from the exhaust pipe. Professional manufacturing, exquisite workmanship, long service life. Specification: Item Type: Condition: Brand new Material: Aluminum alloy Color: Black, silver(optional) Size: TC-XL Applicable Models: General purpose cars, but not suitable for car exhaust pipes with curved tails. Mounting: Clamped on the tail mouth of the exhaust pipe Principle: Make a sound through the air flow from the exhaust pipe. Product Inspection: Use mouth to blow air into the whistle closely, and you can hear the sound. Package List: 1 x Tail Throat Whistle PackageList: