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 - 1/16/26 Launcher v23.2.
Run only AFTER installing the TCFI Software Installer (step 1 - 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
07/14/26. 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 (Step 1 - above). This download updates PCLink.exe to v23.9.58 and- TCFIlog.exe to v20.003
NOTE: This update is REQUIRED for Live Tuning and to access the AutoTuning AI on G7/G8/G9.
This Update Also 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.
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