Ultimate Sound at your track day
We are ASR Component and have been developing valve controllers, memory modules, and exhaust valves for more than 10 years. What began, in typical founder fashion, in a garage has now evolved into one of the leading providers of valve control systems.
From the very beginning, our goal has been to get the absolute best sound out of your cars. At the push of a button and without any structural modifications.

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.
Model Series at a Glance
A comparison of the features of our exhaust valve controller model series.
RX
- Control via remote (handheld transmitter)
- Available for a wide range of vehicle models
- Control independent of driving profile
CB
- Dynamic control using original vehicle buttons (depending on vehicle)
- Memory function for the start-stop system
- Additional useful features depending on vehicle
Developed in Germany for your race car
Our modules are developed and extensively tested by us in Germany. Unlike competing products, the wiring harnesses are also specifically designed for your vehicle, ensuring easy installation.
To make sure you get the best possible solution for your car, we are happy to offer comprehensive advice and technical support.
Safe and Reliable Operation
Our valve controllers are specifically developed for use with electric valve systems.
Plug & Play
Easy installation with included instructions; can be reverted without leaving any traces.
Stock / Workshop Mode
The module can be activated or deactivated using a key combination or a click on the remote control.

Choose your car
If you are unsure about the selection or compatibility, we are happy to assist you.
You don't need an exhaust flap control, but want your vehicle to remember the settings for the start-stop system and lane assist?
Then our memory modules are exactly what you need.