THUNDERMAX ECM with Auto Tune 309-382

If you're running a tuned Harley or performance big twin, your factory ECM is holding you back. The ThunderMax ECM with Auto-Tune 309-382 replaces that limiting computer with a closed-loop tuning system that continuously adapts your air/fuel ratio across all riding conditions—no dyno required. Bolt it in, load your bike's map, and the integral auto-tune handles the rest while you gain throttle response, smoother driveability, and the ability to support forced induction or high-lift cams.

Key Features & Specifications:

• ThunderMax ECM module
• Integrated Auto-Tune system
• Two wide-band O² sensors
• Plug-in factory harness connector
• TMax tuning software included
• USB communication cable
• Adjustable front/rear AFR maps
• Adjustable ignition timing maps
• Adjustable startup maps
• Idle, rev limit, speedometer calibration
• Closed-loop self-adjusting control
• Live monitoring and datalogging
• Diagnostic code recognition
• Bolt-on installation (ECM replacement)
• Compatible with all exhaust systems
• Supports turbo applications
• Supports nitrous applications
• Supports supercharger applications
• Works with high-performance cams
• Free firmware updates lifetime
• Free map downloads available
• Technical support included
• Made in U.S.A.
• MPN: 309-382