Software & setup
Downloads
VF Tuner software for Windows, WiFlash drivers, and setup guides.
VF Tuner WiFlash 4.5
For WiFlash devices across VF Tuner's supported vehicle platforms and protocols, including Toyota/Lexus K Line.
Download WiFlash 4.5VF Tuner Legacy 4.5
For most Gen1/Gen2/Gen3 Toyota/Lexus vehicles, including K Line. K Line logging and other features require WiFlash. Legacy device software compatibility is expected to expire at the end of 2026; contact support about upgrading your hardware.
Download Legacy 4.5WiFlash drivers
Download the WiFlash device driver installer for Windows.
Download driversSoftware & driver installation
Follow the VF Tuner software and device driver installation guide.
Open installation guideNew customers: start here
Follow the complete step-by-step guide to set up your kit.
Open setup guideSetup guides & videos
Watch the setup tutorials and find device registration, tune-file, and ECU flashing guides.
View guides & videosDevelopment & Tuning
Explore EROM features, release notes and vehicle-specific tuning guides, with the original engineering PDFs.
Read the articles