100% Brand New.Color: Blue+ SilverSize10.5x2.5cm/4.10x0.98''(LxD， Approx)Material: AluminumSize: M 25mm(Diameter)Tail Pipe Diameter: 37-48MMLength: 10.5cm，Displacement: 1600-2000ccMake your vehicle sound like a turbo vehicle with the turbo system or blow off valveFitment: Universal fitment for all vehicles modelsAbout the size to choose: First， please measure your car exhaust pipe Inside diameter . Different size of Simulator Whistler ， the sound is different， before buying， please confirm the inner diameter of the exhaust port.Installation:1. Loosen the screw on the Turbo Sound Whistle2. Place the Turbo Sound Whistle body inside the exhaust muffler with the larger opening facing the inside of the muffler3. Screw the screws on the Turbo Sound Whistle to tighten the item so it doesn't fall off while driving4. Professional installation is always recommended， products damaged through self-installation will not be refunded.Package Content:1 x Turbo Sound Simulator Whistle Size M1 x Small Spanner1 x Screw