ITEM NAME:Car Turbo Whistle Black XL Universal Fitment for All Vehicles Models Product Description Description: Features: Color: Silver+ Black Material: Aluminum Size: 11.8 x 3.3cm ( Length x Diameter ) approx. Make your vehicle sound like a turbo vehicle with the turbo system or blow off valve Fitment: Universal fitment for all vehicles models Installation: 1. Loosen the screw on the Turbo Sound Whistle 2. Place the Turbo Sound Whistle body inside the exhaust muffler with the larger opening facing the inside of the muffler 3. Screw the screws on the Turbo Sound Whistle to tighten the item so it doesn\'t fall off while driving 4. Professional installation is always recommended, products damaged through self-installation will not be refunded. Included: 1 x Turbo Sound Simulator Whistle.Place the Turbo Sound Whistle body inside the exhaust muffler with the larger opening facing the inside of the muffler. Loosen the screw on the Turbo Sound Whistle. Screw the screws on the Turbo Sound Whistle to tighten the item so it doesn\'t fall off while driving.