Thunder Heart Performance

Thunder Heart Performance Thundermax ECM with Integral Auto Tune System 309-382

ThunderMax ECM with Auto Tune module mounts conveniently in place of the factory ECM and plugs in to the existing harness Utilizes wide band O2 sensors and works as a closed-loop control system to continuously self-adjust and properly tune the motorcycles air/fuel ratio for all riding conditions Easy installation: replace the factory ECM, install new O2 sensors and …

Learn more

Thunder Heart Performance Thundermax ECM with Integral Auto Tune System 309-562

ThunderMax ECM with Auto Tune module mounts conveniently in place of the factory ECM and plugs in to the existing harness Utilizes wide band O2 sensors and works as a closed-loop control system to continuously self-adjust and properly tune the motorcycles air/fuel ratio for all riding conditions Easy installation: replace the factory ECM, install new O2 sensors and …

Learn more

Thunder Heart Performance Thundermax ECM with Integral Auto Tune System 309-460

ThunderMax ECM with Auto Tune module mounts conveniently in place of the factory ECM and plugs in to the existing harness Utilizes wide band O2 sensors and works as a closed-loop control system to continuously self-adjust and properly tune the motorcycles air/fuel ratio for all riding conditions Easy installation: replace the factory ECM, install new O2 sensors and …

Learn more

Thunder Heart Performance Thundermax ECM with Integral Auto Tune System 309-485

ThunderMax ECM with Auto Tune module mounts conveniently in place of the factory ECM and plugs in to the existing harness Utilizes wide band O2 sensors and works as a closed-loop control system to continuously self-adjust and properly tune the motorcycles air/fuel ratio for all riding conditions Easy installation: replace the factory ECM, install new O2 sensors and …

Learn more