Note: this is only a turbocharger analog sound， it does not make your car had a sporty sound! ! !New Universal Vehicle Exhaust Silencer Car Exhaust Muffler Turbo Sound Whistle Exhaust Pipe Size LSize L : Diameter: Approx 27mm1.Fitment:Universal fits for all vehicle with right size.2.Features:Brand new never been used or installedMade from light weight material3.Installation:Loosen the screw on the Turbo Sound WhistlePlace the Turbo Sound Whistle body inside the exhaust muffler with the larger opening facing the inside of the mufflerScrew the screws on the Turbo Sound Whistle to tighten the item so it doesn't fall off while driving