Cobb Tuning R35 AccessPORT w/ TCM

POWER. FLEXIBILITY. CONTROL. The AccessPORT is the industry leading OEM ECU flashing, managing and monitoring assistant. Unlock power hidden within the ECU by replacing conservative factory settings with more aggressive calibrations. The result is impressive gains in torque and horsepower while maintaining a high degree of safety. The AccessPORT comes with pre-installed maps that are optimized for common performance modifications. Tuning flexibility ranges from simply loading one of the included performance maps designed for common modifications, all the way to complete custom map authoring using our powerful AccessTUNER software. Extract maximum power from virtually any modification while retaining the driveability and sophistication inherent in the OEM ECU.


  • Custom MAF curve capable up to 1500bhp
  • Properly scaled to retain stock like driveability with proper ECU calibration
  • Gets rid of pesky transmission related codes and poor driveability
  • Extensively tested and currently in use in several vehicles with EXCELLENT results
  • Can be used with ANY turbo system available
  • Plugs into factory wiring harness connectors. No cutting or splicing of the vehicle harness necessary
  • AMS MAF calibration curve included for plug and play installation
  • Proven and tested solution


  • 09 + Nissan R35 GT-R

This Accessport has the TCM flashing unlocked as opposed to the 005 model that does not






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