Accessport Manager:  Download and install the latest version of AP Manager to update your Accessport or transfer maps and logs. Download Accessport Manager Knowledge Base: Visit our COBB Knowledge Base for vehicle specific tips, tricks, and troubleshooting. Knowledge Base Accessport Quick Start Guide: A step-by-step guide that shows you how to quickly install and uninstall your Accessport....

Tuning a BMW Most owners know by now that BMW tuning is one of the best bang for your buck modifications you can make.  But, lesser known is how exactly to tune a BMW.  There are many ways accomplish tuning your BMW.  These can be incredibly complicated and involve knowing how to tune a car.  Whether...

When you hear someone mention “Sick Gainz” it’s typically in the neighborhood of at least one “Do you even lift, bro?”s.  But, there’s something even more deserving of the sick gain description.  The gains I’m talking are on your N54 powered BMW and the only supplement required is the Accessport. Every 135, 335, and 535 (also included is...

COBB Tuning is excited to announce another update for the BMW platform.  Vehicles with updated ROM IDs from BMW can now take advantage of the power, control, and convenience of the Accessport that other BMW enthusiasts have been enjoying.  Note that the same vehicles are backed but support has been added to several ROMs that may have...

Will the Accessport work on my BMW?  If the vehicle in question is not listed under the compatibility section beneath the Accessport photos on its product page, the answer is most likely “no.” However, there is an exception. The Accessport AP3-BMW-002 is compatible with N55 BMWs through the 2011 model year.  Although BMWs up to...

Many N55 BMW owners were updated to a new ROM version during their latest service visit.  The ROM update from the dealer resulted in the Accessport no longer being compatible.  This affected any 2011 135 or 335 with an N55 engine using the Accessport that received a ROM update from the dealer.  Now, this new ROM...

  It’s tough to improve a device that delivers 73hp and 105tq to the wheels over stock within minutes, but, it has happened.   To go along with the rest of the BMW’s touchless, keyless, cosseting features, the Accessport will now automatically detect when the engine is on, and turn on, and detect when the engine is...