Thundermax

ThunderMax AutoTune systems are advanced ECM (Engine Control Module) solutions designed specifically for Harley-Davidson models, offering enhanced performance for fuel-injected motorcycles. These systems, including the popular ThunderMax ECM AutoTune Module, use wide-band O2 sensors that continuously monitor the air-fuel ratio and automatically adjust the fuel map for real-time optimization. This makes them highly responsive to changes in throttle and engine RPM, resulting in smoother performance and improved rideability. The AutoTune feature means that adjustments are applied instantly, without needing the rider to manually confirm changes.

Installation is straightforward, as ThunderMax systems come fully assembled and replace the stock ECM without needing wire cutting or splicing. Additional benefits include a built-in barometric sensor, which accounts for altitude and weather changes, and the ability to load custom maps for specific performance preferences. This system is available for various Harley-Davidson models, including Touring and Softail, with specific versions for different model years