Product description

BMW G90 G99 M5 Exhaust Valve Control Module – Valve Exhaust Flap Control (RX1 / CB2)

Upgrade your BMW G90 M5 or BMW G99 M5's sound control with a high-quality exhaust valve control module . This plug-and-play module allows you to control when the exhaust valves are open or closed, giving you complete control over the car's sound and character.

Two versions are available for the BMW M5 G90 sedan and BMW M5 G99 touring : the RX1 remote control module and the CB2 M Sound module . Both systems offer easy installation and give you more control over the sporty sound of the S68 V8 engine.

These modules are ideal for drivers who want to get the most out of their BMW M5 exhaust system .

Available variants

RX1 Valve Exhaust Flap Control – With Remote Control

The RX1 exhaust valve controller gives you direct control over the exhaust valves via remote. With a single push of a button, you can adjust how loud or quiet your BMW M5 sounds.

Features

Sports Fashion

• Exhaust valves fully open

• Maximum sound and sporty experience

Stock Mode

• Original factory setting active

• Car functions as standard BMW configuration

Comfort Mode

• Exhaust valves closed

• Quieter sound and more comfort

Advantages

• Direct control via remote control

• Plug & play installation on the exhaust valves

• No coding required

• Perfect for track days or sporty driving

• Complete control over the exhaust sound

CB2 Valve Exhaust Flap Control – Integration via M Sound

The CB2 exhaust valve module works entirely through the original M sound system of the BMW M5. This allows you to maintain OEM-style operation without an additional remote control.

Features

M Sound active

• Exhaust valves remain permanently open

• Sportier and louder exhaust sound

M Sound disabled

• Valves function as original

• Automatic operation depending on load

Key combination operation

• Module can be activated or deactivated via a button combination

• When disabled everything works completely standard

Advantages

• Operation via original BMW settings

• OEM integration

• Plug & play installation

• Permanently open valves possible

Suitable for

• BMW M5 G90 Sedan

• BMW M5 G99 Touring

• Engine: S68 V8 Bi-Turbo

Why install a BMW M5 exhaust valve module?

The standard exhaust system in the BMW G90/G99 M5 often only opens the valves under higher loads. With an exhaust valve controller , you can control when the valves are open.

Advantages:

• More control over the exhaust sound

• Direct sporty character

• Better driving experience

• Ideal for circuit use or events

Installation

Both modules are designed to be plug & play and are connected to the existing exhaust valve system of the BMW M5.

Installation features:

• No coding required

• Original plugs are used

• Installation without permanent modifications