Cobb AccessPort V3 N54 BMW

The Accessport is the world's best selling, most flexible, and easiest to use ECU upgrade solution for your BMW. Unlock power hidden within the vehicle by replacing conservative factory settings with more aggressive calibrations. Follow our staged upgrade path with pre-loaded Off-The-Shelf (OTS) maps or use custom mapping for any modification level. It's the last engine management solution you'll ever need.

The Cobb V3 AccessPort revolutionizes ECU tuning for the twin-turbo BMW -- and no, we are not exaggerating. In the old days, you only had two choices for tuning -- piggyback solutions that required complicated wiring and installation, and reflashes that were expensive and inflexible.

Now there's a new way. The Cobb AccessPort is a hand-held device that easily reflashes your BMW ECU through the car's own OBD-II diagnostic port. There are no permanent wires to attach, and no physical modifications to the car. The AccessPort comes with MULTIPLE maps, and more can be added in the future. Eventually a tuner like Mach V Motorpsorts will be able to do custom tuning on your car to further customize the tuning. The reprogramming is easily reversible, too.

The Stage 1 map is intended for stock-hardware cars. This map wasn't just rushed to market -- it's been in development for almost two years. The results are worth it -- expect gains of as much as 73 hp and 100 ft-lbs of torque to the wheels with supporting hardware modifications.

Initial installation of the AccessPort takes less than 20 minutes. Removal takes even less time. (We suggest you remove the programming before a dealer service visit, just in case.)

The V3 AccessPort does more than just reprogram, too! It's got a big (nearly 3" diagonal) and bright full-color LCD screen. It can log and display live ECU data, and record up to ten hours of recorded data for later analysis. It can identify and clear DTC ("check engine") codes. It calculates 0-60 and 1/4 mile times. It can display up to six live data parameters simultaneously.

All this is a small and convenient package that's about the size and shape of a smart phone. How can you consider any other tuning solution? (We didn't -- it's on our own shop car.)

Note that although MOST of the different BMW ROMs are currently known and supported, there's always the possibility that there's an odd one lurking out there that Cobb has not added to the AccessPort's on-board database yet. In that case, you'll need to get us the car's ROM file and after a short time we'll be able to get you a file you can use to update the AccessPort and it'll be able to install on your car.

Fits ALL N54-engine 135i/335i/535i and xi cars, including 2007; plus N55-engine 2011 135i/335i/335xi. Comes with AccessPort, storage case, mounting bracket and arm, cables, and instructions.

Fits all 135i 335i and 535i (including xi and xDrive models) 2007 up through 2010; 335is, Z4i and Z4is through 2013; 1M Coupe 2011 only.