Attributes . replace the factory ECM, install new O2 sensors and harness, load the correct map for your bike and ride. Includes ThunderMax ECM with Auto-Tune module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quick-Start Easy Install and Comprehensive User's Manual, technical support and free software and updates. Hundreds of maps available to download for your bike (based on model, engine size, exhaust system air cleaner, pistons, cams, etc.) - load the map of your choice and the integral auto-tune will do the rest. Improves throttle response, exhaust sound and driveability. Does not require dyno tuning. Rider can adjust idle speed, rev limit and speedometer calibration. . Names