The Macht EVC module utilizes the turn signal indicators and tachometer needle to seamlessly control exhaust valves on many BMW Vehicles

Exhaust Valve Settings

   Exhaust Valve open at all times

   Exhaust Valve Closed at all times

   Auto/OEM Mode (factory operation)

Includes OBD2 adapter cord so no cutting or splicing of wires is required.  You can use factory 3M splice connectors (not included) if you prefer a more permanent installation.