4agegarage&Acirc; Turbo Sound Maker Tip Large 30mm 4agegarage Turbo Sound Maker Tip Large 30mm 4agegaragee308 Made of high quality and light weight aluminum Universal Turbo Sound Noise Exhaust Muffler Pipe Whistle / Fake Blow off valve BOV Simulator Whistler Size:XL 30mm(Diameter) Tail Pipe:56-85 Lenght:12 Displacement:2400+ cc CNC Machined from 6061 T-6 Aluminum, Packaged include: 1x Turbo Sound Simulator Whistle Easy to install, can be installed under 2 minutes, Make your vehicle sound like a turbo vehicle with the turbo system or blow off valve