Seller notes

ThunderMax ECM with Auto calibrate module mounts conveniently in place of the factory ECM and plugs in to the existing harness. Utilizes wide band Replacement Part O2 sensors and works as a closed-loop control system to continuously self-adjust and properly calibrate the motorcycles air/fuel ratio for all riding conditions. Easy installation: replace the factory ECM, install new Replacement Part O2 sensors and harness, load the correct map for your bike, and ride. Includes ThunderMax ECM with Au...

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