Mercedes Benz AMG GT-4 RX1.2 (ML2) ASR exhaust flap control

Mercedes Benz AMG GT-4 RX1.2 (ML2) ASR exhaust flap control

Compatible with: AMG GT 63, 53, 43, AMG GT 63 S, GT 63 SE Performance (4-door)

Rediscover the sound of your AMG – with the ASR exhaust flap control RX1.2 (ML2) Gain full control over your exhaust flaps. The control unit enables... manual switching via hand-held transmitter, regardless of your vehicle's Drive Select system. This allows you to decide when your AMG sounds subtle or sporty.

Your advantages at a glance

• Regardless of Drive Select: The sound follows your command, not the driving profile.

• True series mode: The module remains completely deactivated when needed – ideal for workshops, service departments or vehicle inspections.

• Freely programmable start mode: Choose the sound your vehicle starts with.

• Plug &Play Montage: Vehicle-specific original connectors, no soldering, no modification of the electronics.

• No impact on the CAN bus: Software updates will have no effect on functionality.

• Reversible at any time: Dismantling without traces or error messages.

Operation and functions

The ASR control system automatically remembers the last used mode or can be programmed with a fixed start mode if desired.
The flap control reacts directly to the high-quality hand-held transmitter with brushed stainless steel front and wide range – for maximum control with a sophisticated look.

Assembly && Quality

The installation is completed entirely Plug && Play – simply connect the vehicle-specific plugs to the existing changeover valve.
No cutting, no soldering, no power thieves.
Made in Germany – designed for electric flap systems with safe, long-lasting operation.

Notes

• Not approved according to the German Road Traffic Regulations (StVO) – For racing use only.

• The flaps should not be completely closed at full load.

• Installation at your own risk.

• No liability is accepted for damage caused by improper use.

We receive a large number of custom orders and inquiries daily, so it's not always possible for us to have every item in stock at all times. If you need the item urgently, please contact us. here to our sales team, to check stock levels before making your purchase.

We completely understand if you are unsure whether a part is compatible with your car. Therefore, we strongly recommend that you contact your vehicle manufacturer here. Inquiry to us Please contact us. Our friendly sales team will then get in touch with you to confirm if this part is the correct one you are looking for.

All our products come with a standard 2-year warranty. However, this depends on the type of product. See details below. here.

At Upgrade my Car (R-Trade GmbH), we place great importance on fully informing our customers about the intended use of our products. Please note that, unless otherwise specified, all our products are specifically designed for professional racing use. They are intended exclusively for use in competitions on racetracks sanctioned by an officially recognized racing organization. We would like to point out that any use of our products outside of these conditions, including recreational off-road driving, may potentially violate local, state, or federal laws. It is important to understand that Upgrade my Car (R-Trade GmbH) assumes no liability for the legality of using our products on public roads. The responsibility for complying with applicable laws lies solely with the purchaser. We strongly recommend that our customers familiarize themselves with and comply with the relevant legal regulations before using our products.