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    ← ECU / Tuning
    ThunderMax ECM Performance Auto Tuner For Harley Touring 2017-2020

    ThunderMax

    ThunderMax ECM Performance Auto Tuner For Harley Touring 2017-2020

    $989.99

    Fits 17 Harley-Davidson models

    • Electra Glide Standard FLHT2019–2020
    • Electra Glide Ultra Classic FLHTCU/I2017–2019
    • Electra Glide Ultra Limited CVO/SE FLHTKSE2017–2020
    • Electra Glide Ultra Limited FLHTK2017–2020
    • Electra Glide Ultra Limited Low FLHTKL2017–2019
    • Freewheeler FLRT2017–2020
    • Road Glide CVO/SE FLTRXSE2018–2020
    • Road Glide FLTRX2017–2020
    • Road Glide Limited FLTRK2020
    • Road Glide Special FLTRXS2017–2020
    • Road Glide Ultra FLTRU2017–2019
    • Road King FLHR/I2017–2020
    • Road King Special FLHRXS2017–2020
    • Street Glide CVO/SE FLHXSE2017–2020
    • Street Glide FLHX/I2017–2020
    • Street Glide Special FLHXS2017–2020
    • Tri Glide Ultra Classic FLHTCUTG2017–2018

    The ThunderMax ECM With AutoTune is the high-tech way to manage every aspect of your fuel curve for the best possible throttle response and performanc…

    Brand
    ThunderMax
    Category
    ECU / Tuning
    Part number
    309-588
    Where to buy

    Compare prices

    MerchantPrice
    Cycle Gear$989.99Buy

    Price history

    Every price we have recorded, as observed. A line holds flat until the next time we saw the price change.

    $850$900$950$1,000$1,050$1,10011:24 PM5:24 AM11:24 AM5:24 PM11:24 PMCycle Gear — $989.99 on 10/3/2026
    Cycle Gear

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    • * Alerts use your merchant selections — best price right now is $989.99 at Cycle Gear.

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