ThunderMax with AutoTune. Fits Touring 2017-2020.

$1,786 $1,607.40

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Does not fit 2019-2020 Trike Models (Due to traction control / RDRS)

2018 Model Trike should not have RDRS. Dealer to confirm BEFORE purchase.

ThunderMax is an industry award winning, performance ECM designed specifically for EFI equipped Harley Davidson® motorcycles. This highly advanced, stand-alone tuning system utilizes proprietary AutoTune technology with wide-band oxygen sensors to deliver unmatched performance and rideability. ThunderMax comes 100% assembled, ready to install with no wire-cutting or splicing required. Simply replace the factory ECM and oxygen sensors, load a map, and enjoy your new ride!

Tech Tips:-

Exhaust Note: On 2010up Touring models, the OEM exhaust system has 12mm o2 ports. The factory 12mm exhaust system is not compatible with the 18mm ThunderMax oxygen sensors. Models with 12mm ports require the purchase an aftermarket exhaust system with 18mm ports.

eg. COB-6255DB, KW200420, ST-188-71870

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