Porsche 911 GT3 / GT3 RS RX1 (U3) ASR Exhaust Flap Control

ASR exhaust flap control RX1 – for Porsche vehicles with vacuum system (Type U3)

Compatible with:

• Porsche 911 GT3 (991.1)

• Porsche 911 GT3 RS (991.1)

With the ASR RX1 exhaust valve control, you take full control of your Porsche's sound. The control unit allows you to manually open or close the exhaust valves using a high-quality remote control – independently of Drive Select. The last selected mode is automatically saved and restored when the vehicle is started.

Your advantages at a glance

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

• Standard mode is retained: Ideal for workshops, service or vehicle inspections.

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

• No interference with the CAN bus: No impairment of other control units or software updates.

• Plug & Play installation: Original connectors – no cable damage, no soldering, no wire taps.

• Reversible: Can be removed without leaving a trace at any time.

Modes & Functions

The RX1 offers flexible control options:

• Start mode: By default, the system remembers the last state, but this can also be individually programmed.

• Free programming: Easily configurable via the remote control – confirmed by opening and closing the flaps 5 times.

Assembly

Simple plug & play installation – the vehicle-specific connectors are directly connected to the existing changeover valve.

Handheld transmitter

• Elegant design with brushed stainless steel front

• Long range

• Robust construction for long-lasting use

Technical notes

• Not approved under German road traffic regulations (StVZO) – exclusively for racing use.

• Do not close flaps completely during full-load driving.

• Installation is at your own risk – no liability for consequential damages