Leib Engineering CAN BUS Pro Exhaust Flap Valve Controller for the BMW G Series allows you to take control of your vehicle's exhaust system. Gain control over the exhaust valves and start/stop system.
Plug & play installation takes approximately 120 minutes without the need for cutting or soldering.
- EXHAUST VALVE FLAP CONTROL | Adjustable in modes: open - series - closed
- START STOP OFF | The engine start stop function can be deactivated (can be set in the menu)
- EXHAUST VALVE FLAP CONTROL | Controlled via rocker on the multifunction steering wheel
- RES Button on the multi-function steering wheel pressed shortly, stores the valve flap mode for the next engine start
- Optical confirmation of the selected valve flap mode by flashing the turn signal - only at the instrument cluster (not visible outside)
- All functions can be adjusted in the menu (instrument cluster) if required (please download the functional description online)
- There will be NO error entry by using the LEIB CAN EXHAUST module
- The LEIB CAN EXHAUST module is automatically DISABLED, if a BMW Tester is connected to the car
- To prevent a double function, the functions of the exhaust valve flap control are only operable if the cruise control and the limit function are off
All BMW G Series models with a twin-valve exhaust setup.
This includes:- BMW G42 M240i
- BMW G20 M340i
- BMW G21 M340i
- BMW G22 M440i
- BMW F23 M440i
- BMW F40 M135i xDrive
- BMW F44 M235i xDrive
If you're not sure whether this part fits your vehicle, please get in touch.
Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated Race Only and are solely for competition/off road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may be in violation of local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.
We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.
We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.
All in stock products ship the same day if ordered before 2pm GMT
For out of stock items we will contact you with an estimated wait time if not otherwise specified above.
We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy
All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.