【 S M L XL】 Blue Exhaust Fake Turbo Whistle Pipe Sound Muffler Bov Blow Off Valve Description Material: Made of light weight aluminum CNC Machined from 6061 T-6 Aluminum Color: Blue Quantity: 1 pc Size: S/M/L/XL (Pls select the size you require.) Size: S Tail Pipe diameter : 32-43mm Length: 10.2cm Displacement: 1000-1600cc Size: M Tail Pipe diameter :37-48mm Length: 10.5cm Displacement:1600-2000cc Size:L Tail Pipe diameter :44-55mm Length:11cm Displacement :2000-2400cc Size:XL Tail Pipe diameter:56-85mm Length: 12cm Displacement: 2400+cc Feature: - Made of light weight aluminum CNC Machined from 6061 T-6 Aluminum - 1" muffler tip for best effect - Install on Aftermarket muffler, Catback, Axleback muffler it will not produce any sound. - Easy installation - Universal fits for most cars w/ A STRAIGHT OEM Muffler Exhaust, doesn't fit the ELBOW muffer. Installation: 1. Loosen the screw on the Turbo Sound Whistle 2. Place the Turbo Sound Whistle body inside the exhaust muffler with the larger opening facing the inside of the muffler 3. Screw the screws on the Turbo Sound Whistle to tighten the item so it doesn't fall off while driving Package includes: 1 x Turbo Sound Simulator Whistle