TAKE CONTROL OF YOUR BMW’S EXHAUST SOUND — ANYTIME, ANYWHERE
Introducing the 2025 updated IP68-rated dÄHLer Exhaust Valve Control Module (Single Valve) — the ultimate solution for anyone who wants full command over their BMW or BMW M’s factory exhaust valves. Developed in Switzerland and made in Germany, this plug-and-play device lets you manually open and close the stock exhaust flaps on demand, delivering the sound and character your car has been hiding, when you want it.
With the dÄHLer Exhaust Valve Control Module installed, you gain full manual control to open and close your BMW’s standard built-in exhaust valves whenever you want. Operation is simple — either use the included remote control or seamlessly program the system to your existing mirror buttons for a clean, factory-integrated experience (not available in Australia). The valve opens fully to 100%, delivering a true and noticeable boost in exhaust sound, especially on models like the G8x M2/M3/M4 where the stock valves rarely open all the way.
OPEN Button| Keeps exhaust valves fully open until the engine is turned off
CLOSE Button| Instantly reverts back to the factory valve settings
Installation is straightforward and can be completed by anyone with basic experience. The controller connects directly to your BMW’s original (OEM) wiring harness — simply unplug the factory connector, plug it into the dÄHLer module, and then connect the module’s output to the exhaust valve actuator.
The entire install happens in the trunk and underbody, using existing cable ducts or unused sealing plugs to route the wiring externally. Power is drawn directly from factory plugs, so there’s no need to run additional cables through your vehicle’s interior.
Also designed with safety in mind, the dÄHLer Exhaust Valve Control Module stops the exhaust flap from closing permanently to protect your engine from harm during full-throttle conditions.
Precision control of your BMW’s exhaust valve at your fingertips.
Convenient operation via included remote control or programmable BMW mirror buttons*.
Ensures 100% full opening of the exhaust flap for maximum sound enhancement.
Memory function retains the last selected valve position for consistent performance.
Programmable startup mode allows customised valve behavior on engine start.
Seamless integration with all BMW driving modes for uninterrupted functionality.
No additional power cables required — utilises existing OEM wiring.
Easy, plug-and-play installation with direct connection to factory harness.
Robust IP68 rating ensures complete protection against dust and water immersion up to 1.5 meters for 30 minutes.
Constructed from flame-retardant UL 94 V-0 polycarbonate for enhanced safety and durability.
IK07 shock resistance rating withstands impacts equivalent to a 500g object dropped from 40 cm.
Operates reliably across extreme temperatures from -30°C to +80°C (-22°F to 176°F).
Not VIN-locked — fully removable without trace, preserving resale value.
Expertly engineered and manufactured in Germany.
Includes two remote controllers — perfect for sharing access or keeping a spare on hand.
Backed by a comprehensive worldwide 3-year product warranty.
NOW IP68-RATED FOR 2025
The 2025 dÄHLer Exhaust Valve Control Module now features a robust IP68 rating, delivering superior protection against the harsh conditions your BMW encounters on the road. “IP” stands for Ingress Protection, with the “6” indicating complete dust-tight sealing to keep internal components clean and secure. The “8” means the controller can be submerged in water up to 1.5 meters (5 feet) deep for 30 minutes without sustaining damage — ensuring reliability in all weather conditions.
Constructed from UL 94 V-0 certified polycarbonate, the valve controller meets the highest flame-retardant safety standards, meaning any burning ceases within 10 seconds on a vertical surface, with particle drips permitted only if not ignited. It also boasts an IK07 shock resistance rating, capable of withstanding impacts up to 2.0 joules — equivalent to a 500-gram object dropped from 40cm — ensuring durability against road vibrations and shocks. Additionally, it performs reliably across a broad temperature range from -30°C to +80°C (-22°F to 176°F).
Manufactured in an ISO 9001:2015 certified facility, each dÄHLer Exhaust Valve Control Module is individually tested and quality assured, setting it apart as a premium, high-performance product.
IMPORTANT INFORMATION
This dÄHLer Exhaust Valve Control Module is specifically engineered for F-Series and G-Series BMW models withsingleexhaust valve actuator. For vehicles with adualexhaust valve actuators, the suitable module is availablehere. Please verify compatibility with your vehicle before placing your order.
Compatible with all BMW and aftermarket exhaust system that utilise the OEM electronic valve actuators.
FEATURES OF THE DÄHLER EXHAUST VALVE CONTROL MODULE
Full Manual Control of Your BMW’s Exhaust Valves
Unlike the factory system that only partially opens the exhaust valves, the dÄHLer Exhaust Valve Control Module lets you fully open them to 100% for a true, aggressive exhaust sound on demand.
Start Mode Adjustable via Remote Control or Memory Function
Use the remote control to set how your vehicle starts, choosing between OPEN or STOCK valve positions. Alternatively, activate the memory function to have the device remember the last driver’s setting even after the engine is turned off.
Unaffected by BMW Software Updates
The dÄHLer Exhaust Valve Control Module integrates discreetly into your vehicle, ensuring it is neither lost nor overwritten during BMW software updates. It operates silently without triggering error messages, so no faults appear on the BMW DIS diagnostic system during maintenance.
IP68-Rated Durability for Real-World Conditions
Now with an IP68 rating, the dÄHLer Exhaust Valve Control Module is dustproof and waterproof, capable of withstanding submersion in water up to 1.5 metres (5 feet) for 30 minutes without damage. Built with robust materials and designed to endure harsh road environments, it guarantees long-term reliability and protection against the elements.
Undetectable and Trace-Free
The dÄHLer Exhaust Valve Control Module is completely undetectable by plug-in diagnostic readers and leaves no trace once removed, preserving your vehicle’s original condition.
Engineered for Safety and Durability
Manufactured from the ground up in an ISO 9001:2015 certified facility in Germany, this module is engineered to prevent any interference with your vehicle’s data bus and reliably operates within a temperature range of -30°C to +80°C (-22°F to 176°F), requiring no additional heat protection.
INSTALLATION GUIDE
General installation instructions for the dÄHLer Exhaust Valve Control Module is available for downloadhere. Vehicle-specific installation guides are also available for some models on request.
The programming instructions for the remote controller can be downloadedhere.
SAFETY INFORMATION
The dÄHLer Exhaust Valve Control Module maintains all of your BMW’s original safety features, including overload protection and engine warm-up protocols, ensuring long-term reliability and factory-level drivability. It is designed to remain fully functional and unaffected by BMW software updates or servicing, preserving all factory diagnostics and service capabilities. It's also completely undetectable by plug-in diagnostic tools and leaves no trace when removed, keeping your vehicle’s integrity intact.
Each dÄHLer Exhaust Valve Control Module is rigorously tested under real-world conditions — including street driving, track use, and high-speed runs on the German Autobahn — and is manufactured in Germany at an ISO 9001:2015 certified facility, meeting the highest safety and quality standards.
VEHICLE MANUFACTURER WARRANTY AND EMISSIONS DISCLAIMER
dÄHLer Competition Line makes no claims regarding the street legality of its products and assumes no responsibility for compatibility with your vehicle’s OEM warranty. Products are intended for race track use only.
