S Black -Turbine Whistle Turbo Whistle Simulator Muffler Exhaust Valve
M Aluminium Exhaust Whistle Turbo Sound Whistle Turbo Exhaust Pipe Tail Muffler. Specifications (whistle caliber):S size 1.8cm. 1 X Turbo Whistle. make your vehicle sounds like a turbo vehicle with the turbo system or blow off valve.