EFILive

About EFILive

EFILive is a New Zealand-based engineering company that has earned a global reputation as one of the most powerful and flexible ECU calibration platforms available to professional tuners and serious performance enthusiasts. EFILive focuses exclusively on doing one thing exceptionally well: giving tuners and end users the hardware and software tools they need to read, modify, and flash engine and transmission calibrations with an unmatched level of depth and control.

The EFILive Ecosystem: FlashScan and AutoCal

At the heart of the EFILive product lineup are two complementary hardware devices. FlashScan V3 is the professional-grade cornerstone of the system. FlashScan allows users to scan, data log, and reprogram a vehicle for maximum performance and outstanding drivability, integrating the EFILive Scan Tool and Tuning Tool with a vehicle's engine, transmission, and powertrain controllers. With FlashScan, a professional tuner can create, view, and modify custom calibration files from the ground up.

The companion device, AutoCal V3, takes a different approach. Rather than empowering tuners to write tunes, AutoCal is designed to be a professional tune delivery platform — providing a convenient way for tuners to distribute their custom calibrations to customers anywhere in the world. Customers can data log their vehicle's performance and send that information back to the tuner for remote analysis and revision, eliminating the downtime and cost of sending controllers in for reprogramming.

Unrivaled Depth for GM and Cummins Applications

EFILive's hardware and software supports a wide selection of GM Gas, GM Diesel, and Dodge Cummins Diesel vehicles — making it a go-to solution in both the gas performance and diesel performance communities. The platform grants access to an extraordinary number of calibration parameters, from fuel timing and rail pressure to transmission shift points and torque management. No other tuning platform makes it possible to view and modify so many individual tables and parameters within the factory ECU and TCM simultaneously.

For diesel enthusiasts in particular, the depth of Duramax and Cummins support has made EFILive the preferred method of tuning high-horsepower GM diesel trucks. Operators can adjust timing, pulse width, rail pressure, pilot injection events, boost limiting, and speed limiting — crafting precision calibrations for everything from daily drivers to all-out competition builds.

Built for Professional Tuners

EFILive's ecosystem is designed with the professional calibrator in mind. Tuners can brand and customize AutoCal devices to deliver a white-label tuning product to their own customers, complete with encrypted tune files that protect their intellectual property. Features like gang-programming (programming up to five devices simultaneously), Command Line Interface (CLI) automation, and multi-vehicle VIN licensing make the platform scalable for tuning shops of any size.

The V8 Scan and Tune software, which powers both FlashScan V3 and AutoCal V3 devices, features advanced data logging capabilities, 3D hardware-accelerated calibration display, Lua scripting for automated calibration updates, and a robust file management system. Whether you're a single-bay shop or a high-volume tuning operation, EFILive provides the tools to work efficiently and confidently.

Why EFILive?

• Deep ECU and TCM parameter access for GM Gas, GM Diesel, and Cummins engines
• Professional-grade FlashScan and AutoCal hardware built for durability and speed
• Encrypted tune files protect tuner intellectual property
• Remote tune delivery via email — no controller shipping required
• Scalable VIN licensing for single vehicles or full tuning shop workflows
• Continuously updated V8 software with active development and support