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THUNDERMAX ThunderMax Engine Control Module Kit with Integral Auto Tune - '21-'23 Softail 309-592

Part Number: 10203515
THUNDERMAX
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SKU:
10203515
MPN:
309-592
Availability:
Ships Same Business Day
Weight:
2.60 LBS
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$1,170.95
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Description

Factory ECMs limit your Softail's potential, especially when running aftermarket exhaust, air intakes, or forced induction. The ThunderMax ECM takes control away from restrictive OEM tuning and puts real-time fuel and ignition mapping directly in your hands—no dyno fees, no guesswork. With integral auto-tune and hundreds of pre-loaded maps, you'll unlock responsive throttle control, optimized air/fuel ratios, and the exhaust note your bike deserves.

  • Replaces factory ECM, plug-in installation
  • Integral auto-tune with closed-loop oxygen sensors
  • Hundreds of downloadable maps available
  • Adjustable front/rear cylinder AFR mapping
  • Ignition timing and startup map control
  • Wide-band oxygen sensors included
  • Live monitoring and diagnostic datalogging
  • Supports turbo, nitrous, supercharger applications
  • Compatible with all aftermarket exhaust systems
  • Works with high-performance camshaft combinations
  • Adjustable idle speed and rev limit
  • Speedometer calibration control
  • Lifetime software updates, no charge
  • Free technical support online
  • Made in the USA
  • Fits '21–'23 Softail models
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Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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