Description
The ThunderMax ECM With AutoTune is the high-tech way to manage every aspect of your fuel curve for the best possible throttle response and performance! Unlike piggyback tuners that simply modify your ECM (electronic control module) the Thundermax completely replaces it! Consider it a brain transplant for your bike! The true closed-loop system continuously self-adjusts to properly tune the motorcycle’s air/fuel ratio for all riding conditions. If you start at sea-level and ride up to a mountain pass, the ThunderMax will automatically adjust your tune to keep your engine running cool and happy!






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