Software
PC Software Driver - ALL DTT Software - FTDI
Update Steps - Drivers for ALL DTT Software -- HOW TO GUIDE
Follow the steps to remove and update the DTT PC FTDI Drivers (pdf). Only required if your PC stops communicating after a windows update.
NEW - DTT PC Driver - Installer FTDI -- EXE Format
Latest version CDM212364 FTDI CDM driver install Win 10/11 -- .exe file. Note: Only required if your system stops communicating after a windows update.
OLD - DTT PC Driver - Installer FTDI Original -- EXE Format
Original archive version CDM20828 FTDI CDM driver install package --- .exe file
UNINSTALL - DTT PC FTDI Drivers - EXE Format
Uninstall existing DTT FTDI/CDM Drivers - Follow the update steps pdf document.
Shovel/EVO/Twin Cam - Ignition - PC Software
EVO Operating Statistics Install - EXE Format
View 1005/1006/1007 Operating Statistic Information
PCLink EVO Software Install - EXE Format
Setup and configure 1005/1006/1007 - .exe file
TC88/1008 - PCLink Software Install - EXE Format
Setup and configure 1008 - .exe file
TC88A/1009 PCLink Software Install - EXE Format
Setup and configure 1009 - .exe file
TC88A/1009 Log Software Install - EXE Format
View 1009 data log information - .exe file
M8FI G8/G9 - TCFI4/5/6/7 - VRFI4 -- EFI Stand Alone - PC Software
M8FI/TCFI7 & TCFI4/5/6 use the same Tuning/Logging Software
Installation Guide - TCFI Software & Update - PDF
Step-by-Step - How to install and update the TCFI Software (pdf).
1 --> TCFI Software Installer --> Install First - REQUIRED - EXE
TCFI Tuning and Logging Software Installation Package 19.5/19.3 - exe download Install this FIRST before installing the Required EXE --> Auto-Update Launcher Update for TCFI Software.
2 --> REQUIRED - EXE --> Auto-Update Launcher for TCFI Software Installer - M8FI - TCFI7 - G7/G8/G9 + TCFI4/5/6 - Download & Install Second - Auto Install EXE
Auto Install EXE - 12/07/25 Launcher v23.1. Run only after installing the TCFI Software Installer (above). This download updates the Launcher Icon Software on your Desktop. After you run this exe, when you run the TCFI_Launcher.exe from your desktop you can use the "Check For Software Update" to automatically update your tuning software to the latest version.
OPTIONAL - EXE - Manual Install --> TCFI Software Update for M8FI - TCFI7 - G7/G8/G9 - Download & Install Second
04/03/26. Only use this manual download if you do not download and run the Auto-Update Launcher v23.1 (Recommended). Download and manually run this exe only after installing the required TCFI Software Installer (above). This download updates PCLink.exe to v23.9.56 and- TCFIlog.exe to v20.001 This update is REQUIRED for Live Tuning and to access the AutoTuning AI. Supports: M8FI/TCFI7 G7/G8/G9 and TCFI4/5/6. Remember: Be sure to run the TCFI Installer package FIRST -- prior to running this update. NOTE: Running this EXE performs the same function as the Check For Software Update if you use the Auto-Update Launcher exe from the above link.
Obsolete - M8FI - TCFI7 - G7G8/G9 - Dyno/Race Tunes - Download Auto EXE Unzip - M8 & Twin Cam Race Tune Files
Obsolete - Use the Build - Race Tune from Internet feature inside the latest version of PC Link.exe tuning software. Sample M8FI - TCFI - G7/G8/G9 Race Tunes. After you download this exe file, run to unzip and extract the files. Files are extracted into a folder that has the same name as the file. Note: Requires PC_Link.exe (v23 or higher) or .log (log file) using TCFI_Log.exe (v19.97 or higher) - 08/11/25
VRFI4 - V-Rod Only
1 --> VRFI Only - Software Installer - Install First - EXE
VRFI Tuning and Logging Software Installation Package - exe download
2 --> VRFI ONLY - Software UPDATE - Install Second - EXE
Auto Install - VRFI Software Update 15.7/15.61-- REQUIRED for VRFI
VRFI 15.7/15.61 - Config Examples - Download ZIP
Example configuration/setup files for VRFI tune and logging software v157 and 15.61 ONLY
Older Obsolete TCFI4/5/6 Software
TCFI4/5/6 + VRFI4 - Dyno/Race Tunes - Download Auto EXE - Unzip TCFI4/5/6 + VRFI4 Race Tune Fiels
Original - Sample TCFI4/5/6 + VRFI4 Race Tune Files listed in the instructions. After you download this exe file, run to unzip and extract the files. Files are extracted into a folder that has the same name as the file. Note: VRFI4 requires PC_Link.exe (v15.2 ONLY)
Obsolete - TCFI4/5/6 ONLY - Software UPDATE - Install Second - EXE
Auto Install - TCFI Software Update 19.57/19.9 -- REQUIRED for TCFI4 / 5 / 6
Obsolete TCFI4/5/6 & VRFI 15.2 - Config Examples - Download ZIP
Example configuration/setup files for TCFI and VRFI (tune/logging - for TCFI sw rev 19.57 ONLY and VRFI sw rev 15.2)
Obsolete - Config File Examples - Download ZIP
Example configuration/setup files for early PC_LINK and TCFI_Log software (Note: Only the logging version 19.93 and PC_LInk 19.57/15.7 utilizes these examples. PC_Link v20.4+ and newer and TCFI_LOG.exe v19.97+ and newer do not use config files.
Twin Tuner & Twin Tuner II - PC Software
Twin Tuner - Twin Tuner II - Log Software - Install - EXE
Monitor and Datalog Twin Tuner and Twin Tuner II
Twin Tuner - Twin Tuner II - PC Link Config Software - Install - EXE
Setup and configure the setup and curves in the Twin Tuner and Twin Tuner II.
Twin Tuner Setup Files - Download ZIP
Configuration files for the Twin Tuner and Twin Tuner II - zip download
Twin Scan II & Twin Scan 4 - PC Software
Read/Clear Codes - ABS Bleeding
Twin Scan II - Diagnostic Software - Installer - EXE
Works with Twin Scan 2 hardware to read/clear HD diagnostic codes.
Twin Scan 4 - Diagnostic Software - Installer - EXE
Works with Twin Scan 4 hardware to read/clear HD diagnostic codes