ThunderMax ECM with Auto-Tune module mounts conveniently in place of the factory ECM and plugs in to the existing harnessUtililzes wide band 0² sensors and works as a closed-loop control system to continuously self-adjust and properly tune the motorcycles air/fuel ratio for all riding conditionsEasy installation: replace the factory ECM, install new 0² sensors and harness, load the correct map for your bike, and rideIncludes ThunderMax ECM and 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 updatesHundreds 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 restImproves throttle response, exhaust sound and driveabilityDoes not require dyno tuningRider can adjust idle speed, rev limit and speedometer calibrationAdjustable front and rear cylinder AFR maps, ignition timing (spark) maps, and startup mapsWorks with all popular exhaust systems and is compatible with high-performance camshaftsSupports nitrous and supercharger applicationsSoftware program allows live monitoring, recording and examination of diagnostic codes and datalogs including number of starts, engine temperature and rpm operationNew maps, software, firmware updates, map analysis and tech support available on line at no chargeMade in the U.S.A.NOTE: Because of possible clearance issues, some aftermarket exhaust systems may require modifications or relocation of their O² sensor port bungs.NOTE:Some products may not be legal for sale or use on pollution-controlled vehicles; check your local laws and the manufacturer's information.