Silver Car Turbo Sound Whistle Muffler Exhaust Pipe Auto Blow-off Valve Simulator L Compatible: Universal fitment for all 2.0-2.4L vehicles models Made of high quality aluminum alloy, light weight and durable. 1" Inlet for best effect. Turbo Sound Size: L (30mm diameter) Length: 11cm. Tail Pipe: 44-55mm. Displacement: 2000-2400cc After installed this product, the pressure blowing out of your exhaust will make your vehicle sounds like a turbo vehicle with the turbo system or blow off valve.