1 PC Universal Car Sound Simulator Turbo Sound Whistle for Refit Device Exhaust Pipe Function: Aims to simulate a turbo whistle to enhance the exhaust note on vehicles using a refit device exhaust pipe. Design and benefit: Features a unique design that helps smooth the exhaust flow, contributing to a cleaner exhaust experience and a more satisfying drive. Material and build: Made from aluminium, offering light weight and durability. Quality and reliability: Manufactured with fine craftsmanship and strict quality control to provide stable performance and reliability. Compatibility: Universal fit for refit device exhaust pipes, suitable for a range of applicable vehicles. Use scenarios: Upgrading an aftermarket exhaust on a daily driver to add a noticeable turbolike whistle without major changes. Replacing or upgrading a refit device exhaust pipe to improve sound quality and perceived performance. Car shows or performance testing where a clear, distinct turbo sound can enhance presence and demonstration.