Nissan GT-R Accesstuner Support has been moved here: Nissan Accesstuner Support

Accessport Manager:  Download and install the latest version of AP Manager to update your Accessport or transfer maps and logs. Download Accessport Manager Knowledge Base: Visit our COBB Knowledge Base for vehicle specific tips, tricks, and troubleshooting. Knowledge Base Accessport Quick Start Guide: A step-by-step guide that shows you how to quickly install and uninstall your Accessport....

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...

The COBB Accesstuner Software now has the functionality to increase clutch pressure!  This can prevent clutch slip and premature wear even on vehicles producing higher amounts of torque. The dual clutch (GR6) transmission in the R35 GTR utilizes two multi-disc clutch packs for power transfer to each of the gear shafts.  One gear shaft drives...

The COBB Accesstuner Pro Software now has the functionality to increase clutch pressure!  This can prevent clutch slip and premature wear even on vehicles producing higher amounts of torque. The dual clutch (GR6) transmission in the R35 GTR utilizes two multi-disc clutch packs for power transfer to each of the gear shafts.  One gear shaft...

The standardization of the CAN Bus (Controller Area Network) in modern cars can be considered one of the most important components and milestones in automotive design over the last 20+ years. It has ushered in an era where engineers and designers can find the happy balance of white knuckle performance while still loading cars full...

Full hard parts and the Accessport now support the 2018 USDM Nissan GT-R!  Other updates include revised Stage 3 packages and Off The Shelf maps. These new power packages include a revised aluminum intake.  The intake comes with a wrinkle black powdercoat finish and is compatible with the 2018 USDM GT-R.  The new package also includes...

Major firmware and AccessTuner updates for your Nissan GTR! These new features include Staged Injection, Auto Shifting in Manual Race Mode, COBB Boost Cut, Fuel Pump Testing, Wall Wetting Tables, and DBA Style Ignition for 1st Generation CBA vehicles!  The latest v705 Stage 3 OTS maps have been revised to include Boost Control Compensations For Barometric Pressure...

Updates for the GT-R platform include the new Carbon Fiber Big SF Intake System and all new Stage 3 Power Packages with 1300x injectors with Off The Shelf Maps! Nissan GT-R Big SF Intake System 2008-2017 – Carbon Fiber The same Big SF 3″ Intake design, now in Carbon Fiber!  This intake works from stock to big...

Several new features are now available for your Nissan GT-R via a Protuner!  These new features include Staged Injection, Auto Shifting in Manual Race Mode, COBB Boost Cut, Wall Wetting, and DBA Style Ignition for 1st Generation CBA vehicles! Staged Injection Support The new staged injection feature allows users to control 12 injectors through custom code on the...

Updates have been made to the GT-R platform.  This includes the V702 Off The Shelf (OTS) maps and the introduction of the COBB Fuel Pressure Sensor. Map Updates Minor changes have been made for the V702 maps.  These changes include updated knock sensitivity tables (back to stock values, previously using 2012 strategy which was more...

A major update is now available for the Nissan GT-R platform!  This update includes new features on the Accessport and a massive expansion of tuning capabilities via Accesstuner. New Features Bank Relearn Completing a Bank Relearn (also called Bank Balancing) previously required dealer tools.  Users are now able to complete a Bank Relearn via the Accessport!...

New Vehicle Support April marks a quick update for the Nissan GT-R platform.  New vehicle support has now been added!  Support has now been added for the 2014 JDM (Japanese Domestic Market) Nismo Nissan GT-R 2016 SADM (South African Domestic Market) Nissan GT-R 2017 USDM (United States Domestic Market) Nismo Nissan GT-R 2016 EDM (European Domestic Market)...

Our GT-R team has been working on feature enhancements and has added some new stuff to go along with it!  As outlined in the video, the main benefits coming down the pipeline are Bank balancing via the Accessport Rescalable clutch torque table Large injector characterization tables Updated Boost off the line (BOTL) COBB Staging Control (Feature...

January marks a quick update for the Nissan GT-R platform.  New vehicle support has now been added!  Support has now been added for the 2016 EDM (European Domestic Market) Nissan GT-R 2016 ADM (Australian Domestic Market) Nissan GT-R 2016 ME (Gulf Spec/Middle Eastern Domestic Market) Nissan GT-R Compatible Accessports include the AP3-NIS-007 and AP3-NIS-008 part numbers.  As...

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...

Our last GT-R update brought about Transmission Control Module (TCM) optimized shifting maps along with several other new Off The Shelf (OTS) map offerings.  Sadly, users with ECU tunes from other devices or running stand-alone systems were not able to take advantage of these newfound TCM options.  We decided that shouldn’t be the case!  This release...

This is a good one.  New hard parts and packages, new vehicle support, new Transmission Control Module (TCM) Off The Shelf maps, and new Stage 1, 1+, 2, and 3 maps that all make more power than their predecessors!  All maps are available through an Accessport Firmware Update or can be downloaded directly from the...

July 2016 marks the release of a mini-update for the GT-R platform. New vehicle support has been added, some bug fixes have been addressed, and a new ROM is now available for the 09 USDM GT-R that includes a Technical Service Bulletin (TSB) adjustment. Firmware Updates All Nissan Accessports can now upgrade to firmware version 1.7.3.0-12808....