Package Content: The package includes 2pcs turbo whistle. The turbo whistle is length of 4.2 inch/ 10.7cm, the opening diameter is 0.9in/2.5cm. Suitable for the displacement of 1.6-2.0.
Superior Material: The exhaust pipe imitation sound turbine whistle is made of aluminum alloy, lightweight, wear-resistant, rust prevention, corrosion prevention, not easy to fade, can prolong the use time.
Principle: The exhaust whistle makes a sound when air passes through the exhaust pipe, alerting pedestrians and other drivers around you to avoid it in time, improving driving safety.
Simple Installation: Just need to loosen the bolts on the car turbo sound whistle, place it into the exhaust muffler, and tighten the bolts.
Wide Range of Applications: The exhaust whistle is widely suitable for most cars, motorcycle, truck and other vehicles.