THUNDERMAX - 309-589 - ThunderMax Engine Control Module Kit with Integral Auto Tune - '18-'20 Softail
The THUNDERMAX 309-589 engine rebuild kit bundles all the components you need for a complete, professional-quality rebuild.
Features
- 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
- Software program allows live monitoring, recording and examination of diagnostic codes and datalogs including number of starts, engine temperature and rpm operation
- 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
- ThunderMax ECM with Auto-Tune module mounts conveniently in place of the factory ECM and plugs in to the existing harness
- Easy installation: replace the factory ECM, install new oxygen sensors and harness, load the correct map for your bike, and ride
- New maps, software, firmware updates, map analysis and tech support available online at no charge
- Adjustable front and rear cylinder AFR maps, ignition timing (spark) maps, and startup maps
- Works with all popular exhaust systems and is compatible with high-performance camshafts
- Rider can adjust idle speed, rev limit and speedometer calibration
- Improves throttle response, exhaust sound and driveability
- Supports turbo, nitrous and supercharger applications
- Does not require dyno tuning
- Made in the USA
Specs
- Type: Air/Fuel Ratio
- Units: Kit
- Base Color: Black
- Features: Closed Loop
- Product Name: Engine Control Unit
- Features: Includes Oxygen Sensor
- Model: ThunderMax
- Programming: Autotune
- Riding Style: Street
- Color/Finish: Black
- Programming: Downloadable Maps
Frequently Asked Questions - THUNDERMAX - 309-589 - ThunderMax Engine Control Module Kit with Integral Auto Tune - '18-'20 Softail
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
