1PC Universal Car Sound Simulator Turbo Sound Whistle for Refit Device Exhaust Pipe Key benefits Adds a turbostyle whistle without engine modification: simulates the sound of a turbo to enhance exhaust tone for drivers who want a sportier sound. Responsive to engine load: the whistle becomes louder and more pronounced as exhaust volume and engine revs increase. Helps smooth exhaust flow to some extent: unique internal design can improve exhaust smoothness while producing the turbo sound. No power or electronics required: passive device that works with exhaust flow. What makes it stand out Universal fit: designed to work with most refit devices and exhaust pipe setups, providing broad compatibility across vehicle types. Compact and durable construction: built for inpipe use and repeated exposure to exhaust conditions. Singlepiece supply: includes one whistle (1PC) per . Practical attributes Function: sound simulator that creates a turbolike whistle driven by exhaust flow. Compatibility: universal — intended for use with refit devices and standard exhaust pipes. Size and fit: compact form factor designed to fit most exhaust openings when used with compatible refit components. Performance: louder and clearer whistle at higher exhaust volumes; passive operation requires no installation of electrical components. Use scenarios DIY audio upgrade: add a turbolike whistle to a street car during a simple exhaust refit for a sportier sound on acceleration. Show or display vehicles: create an attentiongrabbing turbo sound at car meets or displays without mechanical engine changes. Budgetfriendly sound enhancement: achieve the perceived performance sound for older or naturally aspirated vehicles without costly forcedinduction work. Customer support We are committed to providing reliable customer service. If you encounter any issues with the product, please contact us for assistance.