Cupra Formentor VZ KM RX1 ASR exhaust flap control

Cupra Formentor VZ KM RX1 ASR – Exhaust Valve Control

Compatible with:
Cupra Formentor KM – 310 hp
(not suitable for model year 2026 – solution under development)

Experience the full sound of your Cupra Formentor with the RX1 ASR flap control.
With this control unit, you take control – regardless of Drive Select.
By Handheld transmitter You can manually open or close the exhaust flaps and adjust the sound of your vehicle entirely to your liking.

Your advantages at a glance

• Regardless of Drive Select – you determine the sound, not the driving profile.

• True factory mode – remains deactivated even after the vehicle starts, ideal for workshops, service or vehicle inspections

• Freely programmable start mode – choose how your Cupra sounds when starting up.

• No interference with the CAN bus – full safety, no risk to other control units

• No impact from software updates – functionality is always retained.

• Plug & Easy assembly – vehicle-specific original connectors, no cable damage

Start mode individually programmable

Whether it's the last state or a fixed start mode – you decide how the control system behaves when the ignition is switched on.
Programming is done simply via the hand-held transmitter and is confirmed with an optical signal (five openings and closings of the flaps).

Easy assembly

The assembly takes place Plug & Play directly at the original exhaust flap connectors.
For optimal reception, installation in the trunk is recommended.
The cables are sufficiently long and protected against the elements.

High-quality remote control

• Elegant design with brushed stainless steel front

• Long range and reliable signal transmission

• Designed for continuous, safe operation

Technical notes

• Reversible without leaving any trace

• No error message in the system

• Standalone system – no interference with existing vehicle software

Important instructions

• Not permitted under the German Road Traffic Regulations (StVO).

• For racing use only

• Do not operate flaps fully closed at full load

• Installation at your own risk – no liability for failure to follow the instructions

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.