Auto Tune Performance EFI Engine Management System

The ThunderMax Auto Tune 309-588 is a revolutionary stand-alone Performance EFI Engine Management System, specifically engineered for Throttle-By-Wire Harley-Davidson motorcycle owners. As the industry's first and only system of its kind, it empowers users to seamlessly support a broad spectrum of performance upgrades. You'll immediately notice significant improvements, including quicker throttle response, enhanced power output, and cooler engine operating temperatures. This advanced system operates as a Wide-Band, Closed-Loop unit, meaning it continuously and automatically fine-tunes your motorcycle's air-fuel ratios with every ride, adapting to changing ambient conditions without any user intervention. Software, firmware, and map updates are conveniently available 24/7 via an internet connection. The ThunderMax Auto Tune 309-588 replaces the stock ECM and is made in the USA, backed by a 3-year warranty. It requires 18mm bung holes in the exhaust head pipe for installation. To ensure optimal performance, Cycle Solutions Inc. will pre-set your module with the proper starting map based on your specific bike modifications (exhaust, air intake, cams, etc.) upon purchase. Please note that this unit is not compatible with 2019-2020 Tri Glides equipped with traction control.