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ThunderMax ECM with Integral Autotune System - 2011 Harley FXS/FLST


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  • SKU: 309-361
  • Manufacturer: Thunder Heart


2011 Harley FXS/FLST

    California Restricted

    California laws prohibit (in most cases) the use of any aftermarket product whose installation requires the removal of any emissions control related components as regulated by the California Air Resources Board (

    If an item is designated as "Competition and Racing Vehicles Only", we will require a race waiver be digitally signed before an item can ship to California. If an item is to be exported from California, an export waiver is available as well. This is a REQUIRED guarantee from you that a restricted item will NOT be used on any public highway in California; only on private race tracks in racing or competition use.

    Comes completely assembled and ready to install, no wire cutting or splicing required. Purchase once and all software, firmware and an extensive library of base maps for 88" to 131" are free, allowing the system to grow with future bike modifications without future tuning expenses. No DYNO required--ThunderMax with Autotune continually tunes how you ride, where your ride, every time you ride. ThunderMax provides more power, increased torque, better sounding exhaust and quicker throttle response while optimizing your bikes power output by tuning for your riding style, riding conditions and exhaust system. Your bike will run smoother and considerably cooler by continually maintaining the correct AFR and adjusting the base map as you ride with immediate real time feedback. Allows advanced users and professionals the ability to control every parameter of the system for custom tuning, if required. ThunderMax is a complete factory replacement and is not a Flash Tuner or in-line signal modifier. Utilizes wide band 18mm O2 sensors for real time AFR analysis and correction at all RPM's and load levels. Operates as a closed loop control system to continuously self-adjust and properly tune the motorcycles air fuel ratio for all riding conditions. Designed to fit in the same location as the factory ECM--simply remove factory ECM and install. ThunderMax, plug into existing harness, change the O2 sensors, load the correct base map from TMAX Tuner software and enjoy your ride.
    • Includes ThunderMax ECM with Autotune Module, two wide band Bosch 5-wire O2 sensors with connection harness, TMAX Tuner software and USB communication cable, Quick Start Easy Install Guide and Comprehensive User's Manual
    • Provides industry leading tech support with state of the art diagnostic data logging and collection process
    • Compatible with nitrous, supercharger and turbo systems
    • Adjustable rev limiter, idle speed and speedometer calibration
    • Adjustable front and rear cylinder AFR maps, ignition timing (spark) maps, startup maps and warm-up settings
    • Adjustable engine temp alert, injector size compensation and decel pop control
    • H-D Digital Tech compatible
    • Read and clear diagnostic codes through odometer window, Digital Tech or through the free ThunderMax software
    • Live diagnostic data logging, monitoring and recording ability
    • Proudly engineered and manufactured in the USA with the highest quality components, precision machined billet aluminum cases and encapsulated for waterproofing
    • 3-year manufacturer limited warranty

    This part fits the following

    MotorcycleHarley DavidsonFLSTC Heritage Softail Classic201196 CI1
    MotorcycleHarley DavidsonFLSTF Fat Boy201196 CI1
    MotorcycleHarley DavidsonFLSTFB Softail Fat Boy Lo201196 CI1
    MotorcycleHarley DavidsonFLSTN Softail Deluxe201196 CI1
    MotorcycleHarley DavidsonFLSTSB Softail Cross Bones201196 CI1
    MotorcycleHarley DavidsonFXS Blackline2011103 CI1
    MotorcycleHarley DavidsonFXSB Breakout2011103 CI1

    This product was added to our catalog on Tuesday 18 August, 2020.

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