Exhaust Flap Controls for your BMW 4 Series

Memory Modules for your BMW 4 Series

Choose your BMW 4 Series

Choose the base model for your race car. If you are unsure about your choice or compatibility, we are happy to assist you.

About our valve controllers

Our valve controllers, developed in Germany, allow manual control of the exhaust valves using a remote control or the original buttons – for maximum control over the sound with "plug and play" installation.

Emotion at the push of a button

Open your exhaust valves at the push of a button to unleash maximum emotion on the racetrack.

Quiet when you want it

To make your drive more relaxed—or to comply with decibel limits on the racetrack—you can close the valves independently of the driving mode.

Smart additional features

The CB2 controllers offer, among other things, a memory function for the start-stop system.

About our Memory Modules

Our memory modules make it possible to permanently enable or disable functions such as speed warning, lane assist, or start-stop system.

Permanently disable assistance systems

Our memory modules allow you to permanently deactivate systems such as speed warning or lane assist in your race car if desired.

Simplified startup

No more tedious deactivation of functions when starting the vehicle!

Plug & Play

Simple installation with the included instructions; can be reverted without leaving any traces. No coding required!

Find the right valve controller for your BMW 4 Series

A comparison of the features of our valve controller series for your BMW 4 Series.

About your BMW 4 Series

BMW 4 Series

The BMW 4 Series is a sporty coupe that was first introduced in 2013, succeeding the BMW 3 Series Coupe.
The vehicle is known for its elegant design, which combines sporty aesthetics with luxurious elements.
The 4 Series includes various models, such as the Coupe, Convertible, and Gran Coupe, each catering to different driving needs.
The engine lineup ranges from efficient four-cylinder engines to powerful six-cylinder options, providing dynamic driving experiences.
The suspension of the 4 Series is designed for sporty handling while ensuring high comfort on long journeys.
The interior is premium, featuring modern technology, including an advanced infotainment system.
The BMW 4 Series is also known for its safety features, which provide a high level of protection for occupants.
Various trim levels allow buyers to customize the vehicle according to their individual preferences.
In 2020, the second generation of the 4 Series was unveiled, showcasing a distinctive kidney grille and other design changes.
The BMW 4 Series has established itself as a popular model in the mid-size segment, appealing to drivers seeking sporty performance and style.