Audi SQ8 4.0 TFSI 4M (CB2) ASR Exhaust Flap Control

ASR CB2 exhaust flap control – Precise control for your exhaust flaps

The ASR CB2 exhaust flap control system allows you to directly and reliably control the exhaust flaps via Audi Drive Select and the ESP button. The system is fully tuned to the Audi SQ8 4.0 TFSI (4M) and provides a variable sound profile – from subtle to sporty.

Features at a glance

Drive Select (Individual: Engine Sound)

• Dynamic: Flaps permanently open

• Car: Opens at 3000 rpm or 80% accelerator pedal position

• Comfort: Opens from 4500 rpm or 80% accelerator pedal position

Easy Switch (Double-click ESP)
A double-click on the ESP button allows the flaps to be fully opened or closed, regardless of the selected driving profile. The automatic opening above 4500 rpm remains active at all times.

Series mode / Workshop mode
The module can be activated or deactivated using a simple key combination. When deactivated, the vehicle functions as if it were in its original factory state – ideal for service appointments.

Assembly

Installation is particularly easy thanks to the plug-and-play concept. The module is connected directly to the exhaust flaps and the data bus – without any modifications to the original wiring harness.

Other features

• Reversible at any time without leaving any trace

• No error messages

• Optimized for electric flap systems

• Reliable operation over the long term

• Brand product Made in Germany

Notes

• Not approved according to the German Road Traffic Regulations (StVO).

• Use exclusively for racing, show purposes or export

• The flaps should not be completely closed when driving at full throttle.

• Installation is at your own risk.

• No liability is assumed for failure to follow these instructions.