Tired of your AMG’s exhaust flaps closing when you want them open? Or worse, causing...
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Questions? sales@zacmotorsport.com
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ECU Reflash required? YES
Tired of your AMG’s exhaust flaps closing when you want them open?
Or worse, causing fault codes and limp mode?
Our Exhaust Valve Deactivation Coding Service permanently deactivates the factory valve control logic, keeping your exhaust flaps fully open at all times.
Whether you're upgrading for sound, simplicity, or to solve a recurring fault, this is a clean, safe, and fully reversible solution.
Performed remotely, the service includes our ZAC Motorsport “OPTIMUM” tuning tool at no extra cost, allowing us to carry out the work from anywhere in the world with no physical modification to your vehicle.
Disables factory exhaust valve logic via coding
Keeps exhaust flaps permanently open
Eliminates check engine lights or limp mode caused by seized valves or actuator failures
No physical modifications required
Fully reversible if needed
Remote valve coding session with our tuning team
Complimentary ZAC “OPTIMUM” OBD2 tuning interface (yours to keep)
Clear step-by-step setup instructions
Support for all AMG models with factory valved exhaust systems
A laptop (Windows preferred)
Stable internet connection
15–30 minutes of time
Whether your flaps are stuck, your actuator has failed, or you simply want the full AMG sound 24/7, this coding service gives you a fault-free, drama-free way to make it happen—without CELs, limp mode, or expensive hardware replacements.
WARRANTY:
WARRANTY UPDATE: We want you to be happy! Our warranty is here to back up the faith we have in our products, which are designed and engineered in Australia. If you have any issues, please contact us! sales@zacmotorsport.com
Starting from 1st October 2024 our ZAC warranty covers defects in materials and workmanship of your ZAC Product for 2 years (previously 1 year) from the date of purchase for the original purchaser. This is applicable to purchases made from 1st October 2024 onwards, with the exception of ECU Tuning/Re-Flashing, which have a 30 day satisfaction guarantee.
Further details can be found here...
Included in the box: