Excellent product which makes the sound of your normal car or bike like heavy duty turbo car. Any non-expert person can install it in his bike or car without any problems. L-key in also included which helps to adjust sound.Not to be used with curved exhaust. Title: Car exhaust pip whistleModel:MDiameter: Approx. 2.5cm / 1inLength: 10.2cm / 4inWeight: 75g / 2.64ozFeatures: Normal to Turbo Car / BikeNormal Car will sounds like TurboWorks with cars and bikes.No expertise required to install.No tool required to install.Made up of solid silver material.Excellent product which makes the sound of your normal car or bike like heavy duty turbo car which can be install by any non-expert person without any problem.PACKAGE INCLUDES:1x Turbo Car whistle1x L-Key and screw.FEATURES / SPECIFICATIONSNormal Car will sounds like TurboWorks with cars and bikes.No expertise required to install.No tool required to install.Made up of solid silver material.