Land Rover Defender P525 V8 5.0 RX1 ASR Exhaust Valve Control

Land Rover Defender P525 V8 5.0 RX1 ASR exhaust flap control

More control. More sound. More driving fun.
With the RX1 ASR exhaust flap control, you can unlock the full sound potential of your Land Rover Defender V8 – while maintaining control at all times.

Compatible with:

• Defender P525 (from model year 2021 onwards)

• Defender P425

• Defender P500

The included remote control allows you to manually control your exhaust flaps – regardless of the selected driving mode. This lets you decide when your Defender sounds subtle or roars powerfully.

Your advantages at a glance

• Regardless of Drive Select – the vehicle sound follows your decision, not the driving profile.

• True factory mode – can be deactivated even after the vehicle has started. Ideal for workshops, service centers, or vehicle inspections.

• Freely programmable start mode – Decide for yourself how your Defender sounds when starting up.

• No interference with the CAN bus – no impairment of other control units, no software problems.

• Plug & Play Installation – Original connectors, no cable damage, no power thieves.

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

Technical Highlights

• High-quality remote control with brushed stainless steel front

• Long range and stable signal transmission

• Plug & Play installation in the trunk is recommended (optimal reception, weather protection)

• No error messages in the system

• "Made in Germany" – developed for maximum reliability

This system was specifically designed for electric flap systems and guarantees safe and long-lasting operation .

Notes

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

• The flap should not be completely closed at full load.

• Installation at your own risk

• No liability is accepted for damage caused by improper use.