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Thundermax ThunderMax Engine Control Unit - 309-592 For Harley Softail 2021-2024 Brand_Thundermax Fits with our OG Riser

$544.48

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Fits with our OG Riser Extensions to fine tune your total rise

Tall lumbar support and wide driver saddle support the back and legs for superior comfort

Fits all 2025 to present M8 Softails including FXBB

Use these shims to adapt  your favourite 1" handlebars to your 1-1/8" risers

Thundermax ThunderMax Engine Control Unit - 309-592 For Harley Softail 2021-2024 Brand_Thundermax Fits with our OG RiserFeatures 2 wide band Bosch 5 wire oxygen sensors (18 mm) with AutoTune connection harness ThunderMax quick start easy install and printable comprehensive users manual Never outgrow it easily accomodates bike change No Dyno required automatically tunes for riding style and riding conditions ThunderMax performance engine control module (ECM) 100% engineered and made in the USA Easy to install and simple to use Specs PRODUCT NAME ELECTRONIC CONTROL

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.

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