The most complete GT-R tuning solution on the planet
The Accessport is the world's best selling, most flexible, and easiest to use ECU upgrade solution for your GT-R. 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. Accessport V3 Hightlights 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. 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. 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. 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. 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.
Simple Installation: Everything is included for the simple installation! Intuitive on-screen instructions identify your exact vehicle and available maps.
Simple Uninstall: Revert your ECU to exactly as it was before with the easy to use Uninstall option from the main menu.
Trouble Codes: Read engine trouble codes to diagnose issues. Clear them when resolved. Prevent expensive trips to the dealership.
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.
Gauges – Use your Accessport as a gauge to monitor boost or any other live information, directly from the ECU.
Data Logging: Record multiple data channels simultaneously for in-depth evaluation of engine performance. Stores up to 10 hours.
Performance Measuring: Welcome to your own performance evaluation suite! Measure 0-60 mph time, 60 foot and ¼ mile ET’s. and Trap Speed.
Shift Light: Set custom RPM warning lights for perfect shifts every time.
AP Manager: Use your PC or Mac to manage maps, download recorded datalogs, or quickly update your Accessport. Download free from right HERE.
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.
Off-The-Shelf Maps, or calibrations, are free maps created by our in-house calibration team designed for common modifications. Accessport Manager is used to transfer Off-The-Shelf Maps from your computer to your Accessport.
Nissan GT-R Accessport Map Database
ECU Map Database
The ECU map database is where you can find the latest Accessport engine calibrations offered by COBB Tuning. These maps apply to both AP-NIS-005 and AP-NIS-006 Accessports. To download a map, simply click on the link that corresponds to your vehicle's region, then select the appropriate maps from the following pages.
Click on your vehicle model below to be taken to its Accessport Off-The-Shelf Map Database: USDM STANDARD MAPS USDM BETA HIGH POWER MAPS JDM STANDARD MAPS JDM BETA HIGH POWER MAPS