VW Golf 4 R32 RX1 (U1-I) ASR exhaust flap control

ASR flap control type U1-i – suitable for VW Golf 4 R32

With the ASR U1-i exhaust flap control system, you gain complete control over your vehicle's sound. The system allows you to manually open and close the exhaust flaps using a high-quality remote control – quickly, reliably, and without interfering with the CAN bus. The last selected mode is saved by default and automatically restored when the vehicle is started.

Your advantages at a glance

• Regardless of Drive Select: You determine the sound – not the driving profile.

• True series mode: Module completely deactivated, ideal for workshops, service centers or vehicle inspections.

• Freely programmable start mode: Specify how you want your vehicle to sound when starting.

• No CAN bus interference: No risk to other control units, full update security.

• Plug-and-play installation: Vehicle-specific original connectors, completely reversible and without cable damage.

Program startup mode

The start mode defines which mode the control unit is active in after the ignition is switched on. The last used mode is automatically selected at the factory. However, each mode can be individually programmed if desired.

• Last state: Press the “Sport Mode” button 5 times within 5 seconds.

• Fixed start mode: Press the corresponding mode button for approximately 10 seconds.

The flaps open and close five times to confirm successful programming.

Assembly

The installation is done completely Plug && PlaySimply connect the vehicle-specific plugs to the existing changeover valve – no modifications, no traces and reversible at any time.

Other features

• Standalone system without CAN bus connection

• No error messages

• Reversible without residue

Handheld transmitter

• High-quality look with brushed stainless steel front

• Long range

• Robust construction

Rely on proven quality – brand-name product Made in Germany!

Notes

• Not permitted under 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 assumed for failure to heed these 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.