RENNtech EVM | Exhaust Valve Module | 205 - C-Class MY19+

(2 reviews) Write a Review
14.00 (in)
5.00 (in)
8.00 (in)
Minimum Purchase:
1 unit
Maximum Purchase:
5 units

EVM - Exhaust Valve Module (Remote Controlled)


Mercedes-Benz and AMG cars 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!


By pressing Button 1 on the remote control, RENNtech’s Exhaust Valve Module (EVM) allows you to open the exhaust valves 100% at all times. If you wish to go back to factory settings simply press Button 2. This gives you complete control over the exhaust valves regardless of speed, RPM or driving mode, adding sound and rumble to your car.

Advantages of RENNtech’s EVM:

  • Activation completely independent regardless of drive mode
    • Override your cars factory exhaust flap setting with the push of a button.
  • EVM does not engage with CAN-Bus
    • No interference with any control units.
    • Software updates do not interfere with the functionality of the EVM.
  • Plug and Play with original plugs
    • No cutting wires, no damage to factory cables, fully reversible.
  • Made in Germany



  • 1 x Exhaust Valve Module
  • 2 x Remote Controls (Button 1 fully open, Button 2 back to factory)
  • Wiring harness (model specific)
  • Installation manual



  • 205 - C 43 AMG Sedan + Coupe | MY2019+
  • 205 - C 63 AMG Sedan + Coupe | MY2019+


  • *Before Placing Order, Confirm If Your Car Is Equipped With Factory Exhaust Valves*
  • The vehicle needs to be equipped with the optional factory performance exhaust with factory exhaust valves
  • For extra convenience the EVM is programmed so once the flaps are fully opened they will stay that way even when the car is turned off and restarted later hence no need to press button 1 over and over every time you start the car. It will ONLY go back to factory setting by pressing button 2.
  • No special tools or modifications required for installation
  • The RENNtech EVM is placed in the trunk, no hard wiring necessary - Plug'n'Play solution.



  • 5
    This is AWESOME!

    Posted by Matt on Apr 20th 2021

    You need to get this!
    Car sounds great at idle and better when driving, sounds much cleaner now.

    A must have upgrade!

  • 5
    C63s EVM

    Posted by fb on Aug 28th 2020

    Solid product. Quick and easy insulation. Took less than five minutes once I remove trunk liner. At idle and cruising at low RPMs sounds like a different car altogether. Revving the car in neutral sounds better as well but the rev limiter I think is keeping it a bit tamer than it actually is when accelerating hard. Very happy with purchase overall