1pcs Universal Car Turbo Muffler Sound Simulator Car Turbo Sound Whistle Vehicle Refit Device Exhaust Pipe Turbo Sound Whistle Make your vehicle sounds like a turbo vehicleAfter installed this turbo sound whistle, the preure blowing out of your exhaust will make your vehicle sounds like a turbo vehicle with the turbo system or blow off valve.Made of high quality aluminum, light weight and durable.Easy to install on the car's tailpipe. Material: Aluminum alloyColor: Silver, Black, BlueSize: MWhistle caliber: 24mm(M)Packing list:1pcsInstallation:1. Loosen the screw on the turbo sound whistle2. Place the turbo sound whistle body inside the exhaust muffler with the larger opening facing the inside of the muffler3. Screw the screws on the turbo sound whistle to tighten the item so it does not fall off while driving Note:The turbo sound whistle is not suitable for extremely curved tail pipes. Please make sure the tailpipe is big and long enough to contain this turbo sound whistle.