ITEM NAME:Black Car Turbo Sound Whistle Muffler Exhaust Auto Blow-off Valve Simulator L Black Car Turbo Sound Whistle Muffler Exhaust Pipe Auto Blow-off Valve Simulator L SPECIFICATIONS Item name: Black Car Turbo Sound Whistle Muffler Exhaust Pipe Auto Blow-off Valve Simulator L.(1 x Turbo Sound Simulator Whistle. 2) Place the Turbo Sound Whistle body inside the exhaust muffler with the larger opening facing the inside of the muffler. 1) Loosen the screw on the Turbo Sound Whistle.
