We at Sonic MS are proud to present Cobb Tuning's AcessPORT DIY ECU flashing tool for the N54 engine applications.


POWER. FLEXIBILITY. CONTROL. The AccessPORT is the industry leading OEM ECU flashing, managing and monitoring assistant. Unlock power hidden within the ECU by replacing conservative factory settings with more aggressive calibrations. The result is impressive gains in torque and horsepower while maintaining a high degree of safety. The AccessPORT comes with pre-installed maps that are optimized for common performance modifications.


Tuning flexibility ranges from simply loading one of the included performance maps designed for common modifications, all the way to complete custom map authoring using our powerful AccessTUNER software. Extract maximum power from virtually any modification while retaining the driveability and sophistication inherent in the OEM ECU.


BMW 535i AccessPORT
MFG PN : AP-BMW-001
Applications :

• BMW 535i 2008-2010 ; US SPEC DME Only
• BMW 535i xDrive 2009-2010
• BMW 535ix 2008

MSRP - $895.00
*Pricing does not include shipping costs and/or tax if applicable.

• Incredible power gains are just a few clicks and a flash away.
• Sophisticated logic of the OEM ECU remains intact, providing refined response, excellent driveability and precise control.
• Hand-held flashing lets you control what is stored on the ECU, when-ever and where-ever you want.
• Installs in just minutes through the OBD-II connector. No tools or other actions are necessary. Simply flash and drive.
• Grows with your modifications by changing maps that match your mods.
• Select from Off-The-Shelf maps to match your modifications or take your BMW to a Pro Tuner for professional dyno calibration.
• Uninstalls just as easily and returns ECU to stock configuration. The translates to a high resale value for the unit.
• Conveniently data log sensor values for up to 10 hours to perform in-depth analysis without the need for bulky laptops or other equipment
• Vibrant-color, user-configurable auxillary gauge. Live Data lets you view real-time data from any of the data channels that can be data logged.
• Performane tools record 0-60mph times and 1/4 mile ET and Trap Speed. See real world impact of modifications and tuning changes.
• Intuitive DTC code reading provides the trouble code and a brief description to help diagnose issues easily. Reset the ECU to clear codes at your convenience.

Reference Documents (PDF):
Map Guide
AP Manager User Manual
BMW AccessPORT User Manual
BMW AccessPORT Quick Start Guide


For best pricing and ordering information, please call me at 650-733-6506, email at cal@sonicms.net or send me a PM.

Man... this is sweet. Too bad nothing for the n62 engine :(

Anyone here tried this or does vendor has customer testimonies?

How does it stack up with the GIAC reflash?

Nothing much out there yet in regards to the 535i application, but since 135/335 utilize the same N54 engine, the results should be very similar.

See here...
http://www.1addicts.com/forums/showthread.php?t=472814

I have experience on AP (Version 1) w/ my previous STi and 92X.
Noticeable gain w/ Off the Shelf map on Stg 2 before and even more gain if you Pro-Tune it.
Their OTS map is conservative and safe. My 92X has been w/ Cobb AP OTS Stg 2 for abt 85K miles w/ no issue.

You can select real time map on the fly for different region (Cali 91 piss gas, Rocky's 91, 93 Octane :P, East Coast 94 Octane, Stg1, Stg2, Valet limit 4K rpm, Can't start, etc)
Also AP can function as boost gauge, OBD2 reader, and some other cool things as well.

The nice thing about Access Port is that you can "Unmarry" the AP from the current car and marry it to another N54 engine BMW.
(You can remove and sell it if you sell your car and get partial of your money back)

Cobb is well known in Subaru community and has been involved in many racing events w/ STi, EVO and GTR
I think they just started to join the BMW 3.0 Turbo engine recently.

(Just trying to help spread out the good word for a Texas based company) :D

If you own 535i, this is A MUST ! ! !

If only AP is available for 4.4L V8 :(
Maybe time for 535 :D

Wow, looks good. How long does the process take?

hey Cal..I was checking out the Cobb Tuning website. Nothing for the M54 (2004 530i) engine, correct?

Unfortunately at this time, there is only N54 applications.

It only takes about 30 minutes or so. :thumbsup: