ThunderMax ECM Auto Tune Systems
ThunderMax replaces the stock Harley-Davidson ECM with a full-function engine controller and closed-loop auto tune, so the bike tunes itself to your exhaust and intake as you ride. We stock the ThunderMax ECM with integral Auto Tune, replacement wideband O2 oxygen sensors, and the USB pigtail harness for connecting to the tuning software. Performance tuning for big-inch and modified engines.
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ThunderMax ECM with Integral Auto Tune System for Harley-Davidson
Sale! Price range: $969.95 through $1,088.9511% OFFA standalone ECM replacement with integral AutoTune for fuel-injected Harley-Davidson models, continuously refining fuel and timing maps in real time with no dyno visit required. -
ThunderMax Wideband O2 Oxygen Sensor for ECU Auto Tune System
Sale! $129.95$119.958% OFFUSA-made 18mm wideband O2 replacement sensor for ThunderMax ECM and auto tune systems - restores accurate fuel mapping and closed-loop control to your EFI setup. -
ThunderMax USB Pigtail Harness for ECM Auto Tune System
$20.95USB pigtail extension harness for the ThunderMax ECM Auto Tune System, routing laptop connectivity to tucked or hidden ECM locations on custom Harley-Davidson frames without repeated disassembly.
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