With the KUFATEC Exhaust Pro you have full control over the behavior of the exhaust system Suitable for: Audi RSQ3 F3 Control is carried out using the smartphone app "KUFATEC Link" KUFATEC Link is available free of charge on Google Play and Apple App Store ESP button (3x click) optional radio remote control The following functions are available in the "KUFATEC Link": General diagnostics with CAN packet counter Pin protection Incognito mode (the module is completely invisible after the set time) Software updates Over The Air Factory reset Display of the following information Damper position (open / closed) Engine speed Accelerator pedal position Actual vehicle speed Operating status of the module: Series: Dampers behave as factory Open: Flaps are permanently open Closed: Dampers are permanently closed, but open when pedal force is >70% or engine speed is above 4500 rpm Scope of delivery: Module Cable set Note: This product is not permitted to be used on public roads - use only for racing purposes. Sales are only made outside Germany