NOT SO FUN FACT:
If your Mercedes-AMG is equipped with factory exhaust valves, with or without a center console button to open or close them, factory settings do NOT allow the flaps to fully open unless certain speed and/or RPM have been reached. For example, while cruising the exhaust flaps will never fully open!
THE EVM SOLUTION:
RENNtech’s Exhaust Valve Module, (EVM) gives you complete control over the exhaust sound of your exhaust regardless of speed, RPM or driving mode! The Exhaust Valve Module allows you to fully open the exhaust valves of the AMG Sport Exhaust by pressing Button 1 on the remote control, and to return to factory settings by pressing Button 2.
The RENNtech Exhaust Valve Module is made in Germany.
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 exhaust valve module.
- No cutting wires, no damage to factory cables, fully reversible.
Included:
- 1 x Exhaust Valve Module
- 2 x Remote Controls (Button 1 fully open, Button 2 back to factory)
- Wiring harness (model specific)
- Installation manual
Fitment:
- C118 – CLA Coupe
- CLA35 AMG
- CLA45 AMG
- W177 – A-Class
- A35 AMG
- A45 AMG
- H247 – GLA SUV
- GLA45 AMG
- X247 – GLB SUV
- GLB35 AMG
Note:
- *Before Placing Order, Confirm If Your Car Is Equipped with Factory Exhaust Valves*
- The RENNtech EVM is placed in the trunk, no hard wiring necessary.
- For extra convenience, the EVM is programmed so once the exhaust valves stay fully open in Position 1 (Button 1). Valves will stay open even when the car is turned off and restarted. The EVM will ONLY revert to factory setting by pressing Button 2.
FREQUENTLY ASKED QUESTIONS
If it's in stock and ready to roll, your order usually hits the road within 1–3 business days.
For made-to-order or specialty items (like carbon fiber parts or custom builds), the turnaround can take up to 8 weeks — perfection takes time.
Either way, we'll keep you updated so you know exactly when your parts are leaving the pit lane.
Absolutely! Once your order ships, you'll receive an email with a tracking link so you can follow its journey from our shop to your doorstep.
If your order ships via freight, you'll get a separate email with a direct link to the carrier's tracking page — easy and stress-free.
Things happen on the road — even to boxes. If your order arrives damaged, snap a few clear photos of the box and product and send them our way right away.
If your shipment is lost, just email or call us — we'll help track it down and guide you through the next steps to make it right.
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1ST CLASS SERVICE
805-267-9762or email Support@FFPerformance.co
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