BMW 3 Series G20/G21 M340i RX1 (BE1) ASR Exhaust Flap Control

BMW 3 Series G20/G21 M340i RX1 (BE1) – ASR exhaust flap control

Experience the sound of your BMW anew – with the ASR RX1 (BE1) exhaust flap control . This high-quality control unit allows you to manually control your vehicle's exhaust flaps via an elegant remote control. This gives you complete control over your engine's sound at all times – regardless of the selected driving mode.

Compatible with numerous BMW models , including:
1 Series (125i–140i), 2 Series (225i–240i, M2 F87), 3 Series (328i–340i, incl. G20/G21), 4 Series (428i–440i), 5 Series (530i/540i), 6 Series, 8 Series, X models, Z4 as well as the Toyota Supra 3.0 and BMW i8 .

Your advantages at a glance

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

• Maintain stock mode: Ideal for workshops, service and vehicle inspections.

• Freely programmable start mode: Decide for yourself how your vehicle starts.

• No interference with the CAN bus: No risk to other control units, no error messages.

• Plug & Play Installation: Original connectors, no cable damage, reversible at any time.

• High-quality remote control: stainless steel front, elegant design and long range.

Easy installation – 100% plug & play

Installation is quick and easy using vehicle-specific connectors. No soldering, no cutting, no risk – the system is completely reversible and leaves no trace.

Technical Highlights

• Safe operation thanks to specially developed electronics

• Programmable start mode (last state or freely selectable)

• No error messages in memory

• Made in Germany – for maximum quality and durability

Notes

• Not approved for road use (StVZO)

• For use in motorsport only

• Installation at your own risk

• The flaps should not be completely closed during full-load driving.

Scope of delivery

• 1× ASR RX1 (BE1) exhaust flap control

• 1× High-quality remote control

• Connection cable set with original connectors

• Installation instructions