Table of Contents
- DirectLink Introduction
- DirectLink Main Features
- How To Setup TR4 System
- About This Manual
- Troubleshooting
- TRo2/o2 Sensors/Rivnut Installation
- O2 Sensor Installation Kit Lite
- ECU Tuning Compatibility
- All TechnoResearch Cables
- Tuning Victory® Motorcycle
- Licensing
- 1 Setup and Installation
- 1.1 Where To Get The Software
- 1.2 Install Direct Link Flash Tuner
- 1.3 Run Direct Link Flash Tuner
- 1.4 Connect USB Cable
- 1.5 Power Up The Direct Link Flash Tuner
- 1.6 Power Up To Automatically Install Drivers
- 1.7 Update The Software
- 1.8 Confirm Com Port For Communication
- 1.9 Troubleshooting Com Port Issues
- 2. Toolbar Menu and Icon Descriptions
- 3. Direct Link – Key Features
- 4. Direct Link – Important Tables
- 5. Program the Calibration into the ECU
- 6. How to Save the Modified Calibration
- 7. How to Change Units and Colors
- 8. Monitor Real-Time Data
(Gauges/Meter Display) - 9. Monitor Real-Time Data
(Strip Chart/Meter Display) - 10. Auto-Mapping
- 11. Common Issues and
Possible Solutions - Glossary
ECU Tuning Compatibility
ThunderMax ECUs
ThunderMax ECUs for Harley-Davidson®
All ThunderMax ECUs have "ThunderMax" printed on the physical ECU like shown below.Direct Link can NOT tune any ThunderMax ECU as they are not stock Harley Davidson ECUs.

Magneti Marelli ECUs
Magneti Marelli IAW 26H ECU For Harley-Davidson®


Magneti Marelli IAW 06H ECU For Harley-Davidson®
Direct Link can NOT tune the IAW 6H Magneti Marelli ECUs (pictured below)
