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Nissan GT-R Accesstuner Now Available


Nissan GT-R Accesstuner

It’s back!  After a brief hiatus, we are excited to announce that GT-R Accesstuner is now available.  Accesstuner is our software package that allows enthusiasts to create custom calibrations for their Accessport-supported vehicle.  New for Accesstuner are features such as Map Compare and Table Filtering!  Previously, features like these were limited to our Accesstuner Pro software used by approved COBB Protuners.  For a complete list of features, please visit the GT-R Accesstuner product page or the following Accesstuner Support Pages.

GT-R Accesstuner Support
GT-R Accesstuner General Features
GT-R Tables and Monitors
GT-R Tuning Guide


Acquiring Accesstuner

The process for acquiring Accesstuner has changed.  To get the process started, go to the Nissan GT-R Accesstuner page and click the GET ACCESSTUNER button as seen below.


COBB Tuning has partnered with EFI University to provide customers sought-after Accesstuner training. This training and subsequent testing is required to gain access to the Accesstuner software.

Below are the steps to get your copy of Accesstuner:

  1. Provide and confirm the REQUIRED details including your first/last name, email address, Accessport serial #, and Accesstuner supported vehicle.
  2. When details are confirmed, customers will be passed to EFI University checkout for the relative platform course (i.e. Nissan GT-R).
  3. Once checkout is complete, EFI University will provide you with the Accesstuner training course.
  4. Once the Accesstuner course is complete, Accesstuner testing will be administered and must be passed prior to gaining access to Accesstuner software.
  5. When you successfully pass the Accesstuner training test, you will receive an email with a link to your copy of Accesstuner.

After agreeing to the information, click on the blue button at the bottom of the pop-up window.  Users will then see the following screen which must be filled out correctly in order for the Accesstuner software version to be compatible with their vehicle.




Accesstuner training with EFI University is approximately 2 hours and 45 minutes of video based training.  There are quizzes following each topic and the total testing portion of the training course can be completed in approximately 1 hour and 30 minutes.  Students can take the training at their own pace, but should expect a total commitment of just over 4 hours.


Additional platforms and the tentative schedule for Accesstuner re-release and Accesstuner training courses with EFI University:

Ford –  2017

Mitsubishi – 2017

BMW – 2017


Create a COBB Tuning account to stay up to date with the latest news and product releases for your vehicle.  You’ll also get a reminder when Accesstuner is released for your platform.  Happy tuning!

Mikael Aman on December 16, 2016 says:

EFi University fields cant be filled in. They are grey. How to proceed?

Mikael Aman
AP 10023

    Marshall on December 16, 2016 says:

    Mikael, are you having trouble with the form on our page or once you get to the EFI University page? If you’re able to, give us a call at 1-866-922-3059 so one of our customer service reps can walk you through the process and make sure everything is processing as expected.


Mikael Aman on March 22, 2017 says:

Still no answer from you or EFI University. This is really bad. I have mailed for 2 months and also here and still I cant get my update or test.

What is the problem?

    Marshall on March 22, 2017 says:


    I’ve looked through your ticket and it appears as though our representative was a bit confused. Customers who purchased ATR in the past are still required to go through the EFI University training however we can provide coupon codes to offset the cost of that course. Email with your Accessport serial number and vehicle information so we can provide a coupon code for you!