0 THUNDER HEART PERFORMANCE SKU: 1020-4290 Thunder Heart Performance Ecm Engine Controller 2025 Softail Models 309-606 FeaturesThunderMax ECM with Auto-Tune module mounts conveniently in place of the factory ECM and plugs in to the existing harnessUtilizes wide-band oxygen sensors and works as a closed-loop control... $1,088.95 Decrease Quantity of undefined Quantity Increase Quantity of undefined Add to Cart The item has been added
