THUNDERMAX ECM with Auto Tune - '14-'16 FLT 309-562

Factory ECMs limit your bike's potential—they can't adapt to aftermarket modifications or optimize for your specific riding style. ThunderMax ECM with Auto-Tune replaces that constraint with a closed-loop tuning system that continuously adjusts your air/fuel ratio in real-time, eliminating guesswork and delivering consistent power across all conditions. Install it yourself in under an hour, select your bike's performance map, and let the integral auto-tune handle the rest—no dyno required.

Whether you've upgraded your exhaust, added a cam, or built forced induction into your engine, this ECM scales with your modifications. Live diagnostics let you monitor engine data, while adjustable AFR and ignition maps give you control over idle, rev limit, and throttle response. Free software updates and hundreds of downloadable maps mean your tuning evolves with your bike.

• Fits '14-'16 FLT models
• Plug-in installation, bolt-on
• Two wide-band O² sensors included
• Closed-loop auto-tune system
• Adjustable AFR maps (front/rear cylinders)
• Adjustable ignition timing maps
• Adjustable startup maps
• Live data monitoring and recording
• Diagnostic code capture
• User-adjustable idle speed
• User-adjustable rev limit
• Speedometer calibration adjustment
• Hundreds of downloadable maps
• Compatible with turbo applications
• Compatible with supercharger applications
• Compatible with nitrous applications
• Works with aftermarket exhausts
• Supports high-performance cams
• No dyno tuning required
• Free software and firmware updates
• Free technical support included
• Made in U.S.A.
• MPN: 309-562