COBB AccessPORT V3 ECU Flash Tuner BMW N54 (AP3-BMW-001)

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  • Up to a 51% Horsepower increase!

  • Up to a 55% Torque increase!

  • NEW LCD screen for ease of use.

  • ECU flash, not a piggy-back tune

  • Installs in minutes using easy to use AccessPORT interface

  • Installs via OBDII connector, no tools required

  • Grows and changes as your modifications do

  • Uninstalls in minutes to return your ECU to stock configuration

  • Integrated performance tools to record 0-60 times, 1/4 ET & trap speed

  • Intuitive DTC code reading to help diagnose issues

  • Easily clear ECU codes

  • 30 day satisfaction guarantee

  • Downloadable free performance maps as released

Cobb Tuning V3 AccessPORT Logo

Get the latest in BMW N54 tuning technology with this NEW Cobb Tuning V3 AccessPORT!  If you liked the Cobb V2 then you will be blown away by the features available with this Version 3 Cobb AccessPORT.  This AccessPORT V3 gives you the same HUGE power increases the V2 gave you but with the ability to finely tune each AccessPORT to your vehicle; giving you the best tune possible.  And with the new easy to use, large LCD screen, tuning and features are easier assessable than ever before.





This Cobb V3 AccessPORT unleashes the hidden power within your 135, 335, 535 or Z4 by taking off the the restrictive factory settings and software.  This V3 plugs into your OBD port and flashes your BMW's computer (ECU) in a matter of minutes in order to fully optimize the engines and turbos potential.  The tuning is extremely flexible and allows you to choose on the fly one of the performance maps that are already loaded onto the AccessPORT. This tune is an ECU flash, not a piggy-back tuner, there will be no added devices to your vehicle's ECU. Extract every bit of power from your N54 engine today and drastically improve performance with a COBB Tuning V3 AccessPORT from ModBargains!

Up to a 51% Horsepower Increase // Up to a 55% Torque Increase // NEW Easy to use LCD Screen

Cobb Tuning V3 AccessPORT Tuner Cobb Tuning V3 AccessPORT Kit

If you have any questions about this COBB Tuning V3 AccessPORT for N54 engine? Give us a call today at 714-582-3330

Cobb Tuning V3 AccessPORT Installed/Mounted Cobb Tuning V3 AccessPORT Installed/Mounted


Vehicle Model Year Stage 1 Gains Stage 2 + FMIC Gains Part #
BMW 135i 2008-2010 21%HP / 28%TQ 46%HP / 50%TQ AP3-BMW-001
BMW 335i, xi, i xDrive 2007-2010 30%HP / 38%TQ 51%HP / 55%TQ AP3-BMW-001
BMW 335is 2011-2013 8%HP / 6%TQ 30%HP / 38%TQ AP3-BMW-001
BMW 535i, xi, i xDrive 2008-2010 30%HP / 38%TQ 51%HP / 55%TQ AP3-BMW-001
BMW Z4i 2009-2013 30%HP / 38%TQ 51%HP / 55%TQ AP3-BMW-001
BMW Z4is 2011-2013 8%HP / 6%TQ 31%HP / 21%TQ AP3-BMW-001
BMW 1M 2011 4%HP / 15%TQ N/A AP3-BMW-001

If you have any questions about this COBB Tuning V3 AccessPORT for N54 engine? Give us a call today at 714-582-3330

Dyno Charts

(Click on Images to Enlarge)

Cobb Tuning V3 Dyno N54 BMW 135i
BMW 135i
Cobb Tuning V3 Dyno N54 BMW 335i
BMW 335i
Cobb Tuning V3 Dyno N54 BMW 335is
BMW 335is
Cobb Tuning V3 Dyno N54 BMW 535i
BMW 535i
Cobb Tuning V3 Dyno N54 BMW Z4i
Cobb Tuning V3 Dyno N54 BMW Z4is
BMW Z4is
Cobb Tuning V3 Dyno N54 BMW 1M

Customer Reviews

Mine is a stock 2008 e90 335i. I previously had a JB+ installed and I thought I was happy with it, until I came across the COBB Accessport and I was immediately drawn in to the idea of not having to mess around with the electronics of the car and having to uninstall hardware every time I went to the dealer. Another bonus for me was the fact that the unit comes with free future upgrades of maps, because I did not want to buy a piece of hardware and it becoming obsolete a few months down the road through the release of a newer, better one. So I took the bath and bought it. Thanks again to Alan at for the great assistance and hooking me up with a great deal on this unit.

So I loaded the map for 93 octane and went for a spin... all I can say is holy crap! This car is a beast now! I cannot believe that this kind of power has been ""reserved"" in this car and the COBB was able to unleash it. Power delivery is smooth, and I had no trouble driving in wife-in-car mode, but push that accelerator down just a tad more and watch out! I have trouble keeping the rubber on the road now so I guess I will be looking for some new tires pretty soon, as the stock run-flats are clearly not up to the task any more.

Great job COBB and Alan at Happy customer here!

Oh, and anyone coming from a JB+ or stock car and not being totally blown away by this tune needs to get their butt-dyno examined.

Just wanted to say thank you for your help with my Cobb AcessPORT. Alan took time to answer all my questions and was helpful. I appreciate what you did for me!

Just ordered my Cobb AccessPORT! Alan was very patient as I had many questions about the technology compared to everything else out there. He was objective in his explanation, and answered any questions I had. Great price on a great product I'm sure. I just can't wait to get in and put it to work! Will definitely do business with them again.

I LOVE my Cobb. The car is now amazingly quick, and I've seen an improvement in MPG. Thanks again, you've been a pleasure to deal with.
- Alex N.

""I also bought the AccessPORT from Alan at ModBargains, he definitely hooks it up after looking around it was the best deal! I am completely satisfied with the AccessPORT the gains are amazing I highly recommend.""

I received my Cobb tuner unit and promptly installed in onto my 335i immediately after taking the box from the hand of the mailman. Wow - what an amazing difference this unit makes! I am absolutely floored by the amount of extra HP and torque lying dormant inside my stock engine all this time. I love that it’s very simple to install, there are no hardware changes to mess with, and everything easily reverts back to stock configuration in minutes. I mounted the handheld unit on my dash so I can use the neat live data monitoring features. Absolutely the best money I’ve spent yet on my car. Thanks for your help!
- Matt D.

Alan hooked me up with an UNBEATABLE price on a new Cobb AP. I cant wait to install! I'll be in contact with you very very shortly on a M3 rep front bumper! Thanks for the easy transaction. If anyone is looking for the best price out there call this guy, although im sure most of you know that already


""The day before the rally my girlfriend suggested I just buy a AP, use it for the day, and give someone a deal on the forums. I gaveModBargains a call. They sold me the AP at the same 1addicts price I bought my first one and Gilbert even delivered it to my hotel when I got in at 10PM. I installed the tune, drove the car in the event and ended up actually winning a set of HRE wheels. Might have been the best weekend ever. I can't give enough thanks to Gilbert and Modbargains for really going out of their way to get me my purchase. I don't think any vender of anything I have ever purchased in my life have gone that out of their way for me.""

BMW N54 Accessport V3 Highlights

Cobb Tuning V3 Larger, full color, higher resolution screen

Larger, full color, higher resolution screen...
We super sized the screen for ease of use and better monitoring. Full text help menus, multi-gauge layouts, full map descriptions and more. This screen has room to spare - so no need to run back to your laptop.

Cobb Tuning V3 Customizable multi-gauge display

Customizable multi-gauge display...
Want gauges? No problem. The V3 now supports up to 6 fully customizable gauges with 1/1000 resolution. Monitor all the parameters you want to see and customize each layout for street, strip or track.

Cobb Tuing V3 In vehicle mount, with on/off switch

In vehicle mount, with on/off switch...
There is nothing we like more to see than an AP peeking over the dash. With the on/off button and using the included universal mount or vehicle specific options, there is no reason not to run your AP in-vehicle.

Cobb Tuning V3 Faster and easier to use with a familiar face

Faster and easier to use with a familiar face...
We listened to what you wanted. Use your same maps, monitor your same parameters, and troubleshoot your same codes, but now with more. More speed, more memory, more map storage, more live gauges, and more troubleshooting help.

Cobb Tuning V3 Interchangeable faceplates

Interchangeable faceplates...
Is it your Accessport or our Accessport? It's yours. Customize it as you see fit. The new V3 comes with 2 interchangeable bezels, blue and grey, or put your own touches on one. Our favorite is the chrome one installed in our GT-R.

BMW N54 Accessport V3 Features

Cobb Tuning Accessport Features: Simple Installation

Simple Installation
 Everything is included for the simple installation!  Intuitive on-screen instructions identify your exact vehicle and available maps.
Cobb Tuning Accessport Features: Simple Uninstallation

Simple Uninstall
 Revert your ECU to exactly as it was before with the easy to use Uninstall option from the main menu.
Cobb Tuning Accessport Features: Troubleshooting Codes

Trouble Codes
 Read engine trouble codes to diagnose issues.  Clear them when resolved.  Prevent expensive trips to the dealership.
Cobb Tuning Accessport Features: Change Maps

Change Maps
Store up to 100 maps from our OTS map database or from your favorite COBB tuner and quickly switch between them for any need.
Cobb Tuning Accessport Features: Gauges

Use your Accessport as a gauge to monitor boost or any other live information, directly from the ECU.
Cobb Tuning Accessport Features: Data Logging

Data Logging
 Record multiple data channels simultaneously for in-depth evaluation of engine performance.  Stores up to 10 hours.
Cobb Tuning Accessport Features: Performance Measuring

Performance Measuring
 Welcome to your own performance evaluation suite!  Measure 0-60 mph time, 60 foot and ¼ mile ET’s. and Trap Speed.
Cobb Tuning Accessport Features: Shift Light

Shift Light
Set custom RPM warning lights for perfect shifts every time.

Cobb Tuning Accessport Features: AP Manager

AP Manager
Use your PC or Mac to manage maps, download recorded datalogs, or quickly update your Accessport.  Download free from right HERE.

BMW N54 Accessport V3 Tuning

Flashing: Optimize power, driveability, and effciency while retaining OEM tuning logic and safety checks.

Off The Shelf: Take full advantage of our Off The Shelf (OTS) maps when you follow our heavily tested Staged upgrade path. The maps come pre-loaded on the Accessport and are also available for a free download here.

Self Tuning: Create your own custom maps for your Accessport using Accesstuner Race. Complete OEM tuning table access to optimize your mapping for any set of modifications.

Professional Dyno Tuning: Visit a local tuner in the COBB Professional Tuning Network to have a custom map created and loaded on your Accessport for for maximum power gains.

Professional E-Tuning: Take advantage of easy datalogging and map loading on your Accessport to have an e-tuning expert in the COBB Professional Tuning Network remotely custom tune your vehicle.

Map Database
The ECU map database is where you can find the latest Beta Accessport engine calibrations offered by COBB Tuning.

BMW N54 Accessport V3 Maps

Standard - OTS Maps Race Maps
[view] [view]

Cobb Tuning V3 Box

Cobb Tuning Accessport V3: Box Cobb Tuning Accessport V3: Box

Cobb Tuning V3 Carrying Case

Cobb Tuning Accessport V3: Carrying Case Cobb Tuning Accessport V3: Carrying Case

Cobb Tuning V3 Optional Face Plates

Cobb Tuning Accessport V3: Face Plates Cobb Tuning Accessport V3: Face Plates

Cobb Tuning V3 Car Holder

Cobb Tuning Accessport V3: Car Holder Cobb Tuning Accessport V3: Car Holder

Cobb Tuning V3 Car Dash Attachment

Cobb Tuning Accessport V3: Dash Attachment Cobb Tuning Accessport V3: Dash Attachment

If you have any questions about this COBB Tuning V3 AccessPORT for N54 engine? Give us a call today at 714-582-3330

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