ITEM NAME:Car Pipe Whistle Auto Blow-off Valve Simulator Turbo Sound Exhaust Muffler #gib Store Home Promotion Hot Item Add to Fav.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.
