Thunder Heart Performance Engine Control Module with Integral Auto Tune System - '25 Softail
Thunder Heart Performance
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Product Details
Thunder Heart Performance Engine Control Module with Integral Auto Tune System - '25 Softail. Fits 10 Harley-Davidson models from 2025 to 2025, including the FLSTFI Fat Boy Gray Ghost, FXBR Breakout 117 and FXLRS Low Rider S 117. Manufacturer part number 309606.
Features
- ThunderMax ECM with Auto-Tune module mounts conveniently in place of the factory ECM and plugs in to the existing harness
- Utilizes wide-band oxygen sensors and works as a closed-loop control system to continuously self-adjust and properly tune the motorcycle’s air/fuel ratio for all riding conditions
- Easy installation: replace the factory ECM, install new oxygen sensors and harness, load the correct map for your bike, and ride
- Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quick-Start Easy Install and Comprehensive User’s Manual, technical support and free software and updates
- Hundreds of maps available to download for your bike (based on model, engine size, exhaust system air cleaner, pistons, cams, etc.) – load the map of your choice and the integral auto-tune will do the rest
- Improves throttle response, exhaust sound and driveability
- Rider can adjust idle speed, rev limit and speedometer calibration
- Adjustable front and rear cylinder AFR maps, ignition timing (spark) maps, and startup map
- Works with all popular exhaust systems and is compatible with high-performance camshafts
- Supports turbo, nitrous and supercharger applications
- Software program allows live monitoring, recording and examination of diagnostic codes and datalogs including number of starts, engine temperature and rpm operation
- New maps, software, firmware updates, map analysis and tech support available online at no charge
- Made in the USA
- Because of possible clearance issues, some aftermarket exhaust systems may require modifications or relocation of their O2 sensor port bungs.
- Does not require dyno tuning.
Not Legal For Sale Or Use In California On Any Pollution Controlled Motor Vehicle or Carb Compliant.
Made in the USA
Specifications
- Vendor Part Number
- 309606
- Package Height
- 2.75
- Package Length
- 11
- Package Width
- 9.5
- Brand
- Thunder Heart Performance
- Parts Unlimited #
- 1020-4290
- Unit of Measure
- Kit
Fitment
10 vehicles| Year | Make | Make / Model Model |
|---|---|---|
| 2025 | Harley-Davidson |
Harley-Davidson FLSTFI Fat Boy Gray Ghost FLSTFI Fat Boy Gray Ghost |
| 2025 | Harley-Davidson |
Harley-Davidson FXBR Breakout 117 FXBR Breakout 117 |
| 2025 | Harley-Davidson |
Harley-Davidson FXLRS Low Rider S 117 FXLRS Low Rider S 117 |
| 2025 | Harley-Davidson |
Harley-Davidson FXLRST Low Rider ST 117 FXLRST Low Rider ST 117 |
| 2025 | Harley-Davidson |
Harley-Davidson Softail Breakout FXBR Softail Breakout FXBR |
| 2025 | Harley-Davidson |
Harley-Davidson Softail Fat Boy FLFB Softail Fat Boy FLFB |
| 2025 | Harley-Davidson |
Harley-Davidson Softail Heritage Classic FLHC Softail Heritage Classic FLHC |
| 2025 | Harley-Davidson |
Harley-Davidson Softail Low Rider S FXLRS Softail Low Rider S FXLRS |
| 2025 | Harley-Davidson |
Harley-Davidson Softail Low Rider ST FXLRST Softail Low Rider ST FXLRST |
| 2025 | Harley-Davidson |
Harley-Davidson Softail Street Bob FXBB Softail Street Bob FXBB |
Fitment Disclosure
For reference only, please consult your owner’s manual to confirm your fitment.
General Safety Warning
Failure to follow the manufacturer's recommendations and requirements can cause product failure resulting in serious injury or death. While effort has been taken to collect accurate fitment information, 43 Moto accepts no liability for loss or damage resulting from errors or omissions. If you believe any of the information provided is erroneous, please email [email protected].