BMW F and G chassis models come equipped with a factory exhaust flap valve, designed to modulate exhaust sound levels for different driving profiles. While this system aims for refinement, many BMW enthusiasts crave a more pronounced and sporty exhaust note. The F Series N55 Jb4 W Obdii module offers a simple yet powerful solution, granting you instant command over your exhaust flapper valve directly from the driver’s seat.
Imagine transitioning from a subtle, almost stock exhaust sound to an aggressive, exotic roar with just the push of a button. This plug-and-play module makes it a reality, unlocking your BMW’s sonic potential without the hefty price tag of a full aftermarket exhaust system. The beauty of the F series N55 JB4 W OBDII lies in its seamless integration. Utilizing the CANbus system, installation is a breeze – no complex wiring, no external remotes to juggle, and no need to physically disconnect any exhaust components. Simply plug the module into your OBDII port, discreetly tuck it away, and use your turn signal button to effortlessly cycle through exhaust flap modes: always open, always closed, and the factory OEM operation. Installation and removal are a matter of seconds, and importantly, it’s designed to coexist harmoniously with aftermarket tuning systems.
Beyond exhaust valve mastery, the F series N55 JB4 W OBDII module is packed with additional features to enhance your BMW driving experience. For M models, an “active sound MUTE” option allows you to disable the artificial engine noise that is piped through the car’s stereo system, providing a more genuine auditory experience. For BMWs equipped with LED headlights, an “LED HALO max brightness” mode is included to maximize the intensity of your angel eyes at night, boosting visibility and aesthetics. Furthermore, an optional in-dash boost gauge feature can be activated, giving you real-time monitoring of your boost levels during performance driving. Each of these features, including the core exhaust valve control, can be independently configured and toggled directly from the driver’s seat, offering a truly customizable driving experience. And the innovation doesn’t stop here – expect future enhancements and features to be added to the F series N55 JB4 W OBDII module through free firmware updates, easily installable via a BMS DATA cable.
On BMW M vehicles, it’s worth noting that these models are equipped with dual exhaust flaps, one on each side of the exhaust system. The F series N55 JB4 W OBDII module intelligently controls both flaps simultaneously, ensuring balanced and consistent exhaust modulation across the system.
Vehicle Fitment
The F series N55 JB4 W OBDII module is compatible with a wide range of BMW F and G chassis models.
Compatible with Most BMW F and G Chassis Models
Excluding the following non-compatible models:
- 2021+ G8x M3/M4
- 2011-2016 BMW F10 F11 535i/ix and 550
- 2018+ F90 M5
- 2018+ G02 X4 and X3 and X3M/X4M
For detailed installation instructions and to access the latest firmware updates for your F series N55 JB4 W OBDII module, please refer to the official guide:
