RENNtech EVM | Exhaust Valve Module | Audi | Maserati mercedes-benz-a-class--177---2019-present--a-45-amg-esr8335683 Please note that the Mercedes

RENNtech EVM | Exhaust Valve Module | Audi | Maserati mercedes-benz-a-class--177---2019-present--a-45-amg-esr8335683 Please note that the MercedesEVM Exhaust Valve Module (Remote Controlled) NOT SO FUN FACT: Sportscars equipped with factory exhaust valves, with or without a center console button to open or close them, the factory settings do NOT allow the valves to fully open unless certain speed and or RPM have been reached. For example, while cruising the exhaust valves will never fully open! THE EVM SOLUTION: By pressing Button 1 on the remote control, RENNtechs Exhaust Valve Module (EVM)

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