Mazda Accesstuner

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Software is not available at this time.

Availability: Ships in 24 hours
Product Code: AT-MAZ

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This part is not an emissions-related part and therefore can be used on Emission Controlled Vehicles.


Accesstuner is undergoing various updates and is not available at this time

Accesstuner is engine tuning software created for enthusiast tuners. Accesstuner allows the user to get into the heart of the OEM ECU and create custom calibrations for vehicles equipped with virtually any performance modification. The end result is a tune that is custom tailored to the vehicle's unique modifications, producing maximum power gains while maintaining the drive-ability and sophistication inherent in the OEM ECU.

COBB Tuning does not provide calibration support for Accesstuner users. For information regarding tuning strategies and tips, reference the Tuning Guides mentioned below.

System Requirements: Windows 8.1, 10; (Windows ARM not supported) & 11.

Accesstuner is only compatible with V3 Accessports.

Accesstuner does not support emulated or virtual environments.

Please Note : Accesstuner Race for the Mazda RX-8 will not include the same feature set as the current Mazda Accesstuner software.


Create custom calibrations for your supported Mazda vehicle!

Mazda Accesstuner
  • Simple Interface with Tuning Flexibility
  • Same tuning capabilities as our Accesstuner Pro shop grade software
  • Access to a huge number of tables for full tuning control
  • COBB Tuning provided tuning documentation
  • Compatible with V3 Accessports Only


COBB Custom Features:

Boost Tuning Logic: Accesstuner incorporates COBB Tuning?s proprietary Boost Tuning capability, allowing the tuner to target boost pressure rather than use Mazda's load target strategy.

Dynamic Load Scaling: COBB Tuning's implementation of Dynamic Load Scaling allows tuning beyond the OEM limitation of 2.0 grams of Load while retaining high table resolution.

Launch Control: Tuners can adjust Launch Control tables in a map for all manual transmission MAZDASPEED vehicles supported by this software.

Flat Foot Shift: Tuners can adjust Flat Foot Shift tables in a map for all manual transmission MAZDASPEED vehicles supported by this software.

Standard Features

Tuner Auto Updater: Users can access tuning software updates through the "Help/Updates" menu.

Map Locking: Maps can be locked to prevent customer tampering, unauthorized distribution or inappropriate use.

Unlimited Vehicle Flashing: Allows an unlimited number of Accessport equipped vehicles to be tuned.

Integral Data Logging: Unlimited data logging of multiple channels of data from the ECU for detailed analysis of engine performance.

Integral Dashboard: Shows tuner chosen gauges to be displayed on-screen throughout the tuning process.

Unit Conversion: Ability to easily convert between metric and standard units so the tuner can use units he/she is most familiar with.

Map Database: Free access to the Off ?The-Shelf (OTS) map database from COBB Tuning that provide excellent starting points for specific modifications.

Hot Keys: Convenient one-touch short-cut keys allow easy data manipulation of common tuning operations.

Wideband O2 Interface: Open wideband O2 interface integrates with a wide selection of available wideband O2 sensors.

Embedded Stock Data: Stock tuning data (ROMs) are self-contained inside the software itself, providing the OEM baseline tune for each vehicle supported by the software.

Technical Support (Accesstuner PRO ONLY): Outstanding technical support from the software engineering team and our expert calibrators.

Tuning Documentation: Step-by-step Accesstuner Help File provided by COBB Tuning Calibrators explains ECU logic and procedures for properly tuning your specific application. For release notes, update instructions, monitor & table list, tutorials, help documentation, CLICK HERE.