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The Accessport V3 is the world’s best selling, most flexible ECU upgrade solution for Nissan GT-R. Unlock power hidden within the vehicle by replacing conservative factory settings with more aggressive calibrations. Upgrade forever with off-the-shelf (OTS) calibrations for most bolt-on modifications. It’s the last engine management solution you’ll ever need.

Throw away your gauges!! The new in-cabin mountable Accessport V3 has a large, full color, higher resolution screen which allows you to monitor up to six parameters in real time. Fully customizable from the look (multiple bezel colors), layout (set up a race, street or dyno gauge cluster) and mounting options (choose from 1,000s of standard vehicle mounts). Of course, all of the great COBB tuning is included – with enough space for 100 calibrations.

This is your new Accessport – and maybe the last one you’ll ever need.


COBB Adjustable Traction Control: Adjust target traction slip on the fly (Slots 1-8) and maximize tire grip to best suit given track conditions (wet/damp/dry/street/slip/burnout/etc).  Note: Feature must be enabled in ECU calibration for use.

COBB Adjustable Launch Control: Adjust the factory launch control RPM to maximize the tire to pavement contact for that perfect launch. Note: Feature is only available on AP3-NIS-006 and AP3-NIS-008

COBB Boost Gauge wrap around: Monitor boost past 20 PSI (~150 kPa), which is an OEM limitation on the factory Multi-Function Display. The boost gauge will wrap around and display excess boost pressure.

COBB Boost Off The Line: Dial in boost to optimize launches beyond the factory Launch Control logic.  Boost Off The Line builds boost to spool the turbos for that perfect launch. Note: Feature must be enabled in ECU calibration for use.

COBB Knock Indicator: View knock events, as they occur, on the factory in-dash display. Learn More.

COBB On The Fly Map Switching: Switch to another map on-the-fly while you drive for optimal tuning for every situation. Learn More.

COBB Realtime Tuning:  Changes can be made to the map in realtime, while the engine is running.  Greatly speeds up the tuning process and allows quick changes to powerful features like Launch Control, Flat Foot Shift, and map switching.

COBB Rolling Boost: Load up the turbos to create boost for roll race events. Simply hold the cruise control button, “Set Coast” to build boost. Note: Feature must be enabled in ECU calibration for use.

COBB Speed Density Tuning: Tune using the MAP sensor instead of the MAF sensor for big-power builds that exceed the stock MAF sensor’s maximum capacity.

COBB Fast ECU Flashing: Allows ECU map change flashing time to be reduced to 40 seconds or less! Learn More.

TCM Flashing: Reflash the Transmission Control Module to enhance launch control, perform factory gear learning, and adjust clutch capacity and touch points. Note: Feature is only available on AP3-NIS-006 and AP3-NIS-008

TCM Logging: Log transmission data monitors to diagnose mechanical issues or improve transmission characteristics. Transmission monitors can be logged simultaneously along with Engine monitors.  Note: Feature is only available on AP3-NIS-006 and AP3-NIS-008

TPMS Learning: Easily re-program TPMS sensors for new wheels and tires using the Accessport and prevent cumbersome trips to the dealership!* (*requires common Tire Pressure Positioning Sensor Tool).

Nissan GT-R


AP3-NIS-005 – $950.00
AP3-NIS-006 – $1,350.00
AP3-NIS-005-006-Update – $400.00
AP3-NIS-007 – $950.00
AP3-NIS-008 – $1,350.00
AP3-NIS-007-008-Update – $400.00


Nissan GT-R Accessport V3 (AP3-NIS-005)
Nissan GT-R Accessport V3 w/TCM Flashing
Nissan GT-R Accessport V3 (Upgrade to TCM Flashing) (AP3-NIS-005-006-UPDATE)

2008 Nissan GT-R JDM
2009 Nissan GT-R ADM
2009 Nissan GT-R EDM
2009 Nissan GT-R East Asia
2009 Nissan GT-R Gulf Spec.
2009 Nissan GT-R JDM
2009 Nissan GT-R South Africa
2009 Nissan GT-R USDM
2009 Nissan GT-R Vspec JDM
2009 Nissan GT-R Vspec Race EDM
2009 Nissan GT-R Vspec Race JDM
2010 Nissan GT-R ADM
2010 Nissan GT-R EDM
2010 Nissan GT-R East Asia
2010 Nissan GT-R Gulf Spec.
2010 Nissan GT-R JDM
2010 Nissan GT-R South Africa
2010 Nissan GT-R USDM
2010 Nissan GT-R Vspec EDM
2010 Nissan GT-R Vspec Gulf Spec.
2010 Nissan GT-R Vspec JDM
2010 Nissan GT-R Vspec Race JDM
2011 Nissan GT-R ADM
2011 Nissan GT-R EDM
2011 Nissan GT-R East Asia
2011 Nissan GT-R Gulf Spec.
2011 Nissan GT-R JDM
2011 Nissan GT-R NISMO JDM
2011 Nissan GT-R South Africa
2011 Nissan GT-R USDM
2012 Nissan GT-R ADM
2012 Nissan GT-R EDM
2012 Nissan GT-R East Asia
2012 Nissan GT-R Gulf Spec.
2012 Nissan GT-R JDM
2012 Nissan GT-R NISMO JDM
2012 Nissan GT-R South Africa
2012 Nissan GT-R USDM
2013 Nissan GT-R ADM
2013 Nissan GT-R EDM
2013 Nissan GT-R East Asia
2013 Nissan GT-R Gulf Spec.
2013 Nissan GT-R JDM
2013 Nissan GT-R NISMO JDM
2013 Nissan GT-R South Africa
2013 Nissan GT-R USDM
2014 Nissan GT-R USDM

Nissan GT-R Accessport V3 (AP3-NIS-007)
Nissan GT-R Accessport V3 w/TCM Flashing
Nissan GT-R Accessport V3 (Upgrade to TCM Flashing) (AP3-NIS-007-008-UPDATE)

2014 Nissan GT-R ADM
2014 Nissan GT-R EDM
2014 Nissan GT-R East Asia
2014 Nissan GT-R Gulf Spec.
2014 Nissan GT-R JDM
2014 Nissan GT-R NISMO JDM
2014 Nissan GT-R South Africa
2015 Nissan GT-R ADM
2015 Nissan GT-R EDM
2015 Nissan GT-R East Asia
2015 Nissan GT-R Gulf Spec
2015 Nissan GT-R JDM
2015 Nissan GT-R South Africa
2015 Nissan GT-R NISMO ADM
2015 Nissan GT-R NISMO EDM
2015 Nissan GT-R NISMO JDM
2015 Nissan GT-R NISMO USDM
2015 Nissan GT-R USDM
2016 Nissan GT-R ADM
2016 Nissan GT-R EDM
2016 Nissan GT-R Gulf Spec
2016 Nissan GT-R JDM
2016 Nissan GT-R NISMO-JDM
2016 Nissan GT-R NISMO EDM
2016 Nissan GT-R NISMO Gulf Spec.
2016 Nissan GT-R NISMO USDM
2016 Nissan GT-R South Africa
2016 Nissan GT-R USD
2017 Nissan GT-R NISMO USDM
2017 Nissan GT-R USDM



For a limited time, exclusively through COBB, trade in your Version 2 Accessport for 50% off a brand new Accessport V3 (direct from COBB). Join the big screen, mountable, 6-monitor revolution of in-cabin tuning.

Accessport V2 to V3 Trade-in Program

The COBB V3 Trade-in is a terrific option for loyal COBB customers to upgrade to the new hardware at a significant discount. Simply purchase a new V3 and send your old, unmarried V2 back with the included shipping label. Once verified, we’ll refund 50% of the purchase price to your credit card or Paypal account.


Stage Power Packages:

Our engineers rigorously test Hard Parts to find the right order and combination for the best incremental power gains. Maps are created and tested to tune the ECU so that it supports and takes advantage of each part. With these results, COBB is able to create the Upgrade Path of Staged Packages that have all the necessary parts to upgrade your car.

The COBB Way:

With over 15 years of Research and Development, COBB Tuning has created Upgrade Paths designed to provide you with everything you will need to go from a bone stock car to a powerful, drivable, daily smile-making machine. Each path is specifically designed to maximize power of the Accessport, Hard Parts and our Off-The-Shelf maps. Learn more about The COBB Way.

COBB Dealers, Distributors and Protuners

Click here for a list of Authorized COBB Dealers, Distributors and Protuners in your area

Always be sure you are buying from a COBB Authorized Dealer to ensure you are getting real COBB products, a full product warranty, and the best customer service!