Cobb Tuning AccessPort for 2007-2012 BMW 135i 335i 535i

Want a BIG horsepower gain in under 20 minutes?
The Cobb Tuning AccessPort is a hand held ECU flashing tool for your 135i, 335i, or 535i that replaces the conservative factory settings with more aggressive calibrations for more power. Just plug the AccessPort into the OBDII port under the dash, bring up the AccessPort onscreen menu, select from a variety of engine maps for your desired performance and install. It's that easy.

The AccessPort maintains the sophisticated control logic, refined engine response and excellent driveability of the stock BMW ECU while providing impressive power gains and improved performance. Included with the AccessPort are engine maps for 91 octane and 93 octane fuel with the ability to download additional maps to match your future modifications as they become available. In addition to the performance improvements, the AccessPort includes a variety of tools to measure performance, log data and clear fault codes. Check the results of your latest modification. The AccesssPort measures 0-60 MPH, 60', 330', 1,000' and ΒΌ mile times. Display boost pressure, oil temperature and other engine data channels with the Live Data feature or switch to Data Logging to record up to 10 hours for in depth analysis. And if that wasn't enough, the AccessPort can also read and reset all of the factory DTC trouble codes.

2007-2010 135i, 335i/335xi, 535i Buy Now!
2011-2012 135i/135is, E9X 335i/335xi Buy Now!

Tutorial Videos:


Firmware Update

Change Map


Live Data

Data Logging

Trouble Codes