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ThunderMax ECM Performance Auto Tuner For Harley 2008-2013

Item: P998506 | SKU: 10223963
Unleash the Beast: Why the ThunderMax ECM Is the Ultimate Upgrade for Your ’08-’13 Harley

Tired of that hot, sluggish feeling after upgrading your exhaust or air cleaner? The factory Electronic Control Module (ECM) in your 2008-2013 Harley-Davidson just wasn’t built for the rumble and flow of high-performance parts.

ThunderMax ECM Performance Auto Tuner For Harley 2008-2013

Unleash the Beast: Why the ThunderMax ECM Is the Ultimate Upgrade for Your ’08-’13 Harley

Tired of that hot, sluggish feeling after upgrading your exhaust or air cleaner? The factory Electronic Control Module (ECM) in your 2008-2013 Harley-Davidson just wasn’t built for the rumble and flow of high-performance parts.

Enter the ThunderMax ECM Performance Auto Tuner. This isn’t a “piggyback” system—it’s a complete, stand-alone replacement for your stock ECM, designed to unlock true, responsive power.

Key Features That Make the ThunderMax a Game-Changer:

Proprietary AutoTune Technology: Utilizing included wide-band oxygen sensors (a major step up from stock), the ThunderMax constantly monitors and adjusts your Air/Fuel Ratio (AFR) in real time, automatically perfecting your tune every time you ride.

Cooler, Smoother Engine: By dialing in the AFR precisely, the system eliminates the lean condition of stock bikes, leading to significantly cooler operating temperatures and a smoother running engine. Say goodbye to excessive heat!

Plug-and-Play Performance: Installation is straightforward. Replace the stock ECM, plug in the new sensors, load a base map for your specific bike mods (cams, pipes, etc.), and the AutoTune takes over. No expensive dyno runs are required.

Full Customization: For advanced users, the free TMax software gives you complete control over parameters like idle speed, rev limit, ignition timing, and decel pop control.

If you own an ’08-’13 Harley and are looking for a comprehensive, future-proof tuning solution that will maximize your throttle response and ensure peak performance regardless of altitude or weather, the ThunderMax ECM is the ultimate foundation for your V-Twin build.

Would you like to know more about the difference between wide-band and narrow-band O2 sensors?

ThunderMax ECM Performance Auto Tuner For Harley

The ThunderMax ECM Performance Auto Tuner For Harley is the high-tech way to manage every aspect of your fuel curve for the best throttle response and performance possible. It mounts conveniently in place of your factory ECM and plugs into your existing harness, and uses a closed-loop control system to continuously self-adjust your motorcycle’s air/fuel ratio in real time while your ride! If you start at sea-level and ride up to a mountain pass, the ThunderMax will automatically adjust your tune to keep your engine running cool and happy!

There are plenty of piggyback tuners on the market that simply modify your ECM (electronic control module) they are capable of making basic adjustments suitable for mildly upgraded bikes, but none of them can make real time adjustments like the ThunderMax. For that type of performance you need a closed loop tuner and the ThunderMax is one of the best! With a built -in barometric sensor you never have to think about ambient air changes. WideBand O2 sensors constantly read the Air Fuel Ratio and give live, real time feedback to the ECM. That means, no “accepting” the changes made to the map, once you key off the changes are written.

The ThunderMax ECM is fully adjustable with their free tuning software or can be used just by loading a base map.

Features:

  • Mounts in place of factory ECM
  • Real time auto-tune adjustments
  • Start with a base map then let auto tune dial in your ride
  • Compatible with high-performance camshafts, turbo, nitro and superchargers
  • Monitor, record and analyze diagnostic codes and stats
  • Free firmware, tech support and updates

Note: System requires 18mm O2 sensor ports to accommodate the wideband sensors, stock pipes will need to have the 12mm bungs removed and 18mm bungs welded in place. Do you want to know more about the ThunderMax ECM Performance Auto Tuner For Harley 2008-2013?

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