GWv4 is the latest version of calibration software for GEMS engine management systems and transmission controllers. It has been completely re-designed from GWv3 and has many new features including:
Re-designed user interface
Multi tabbed workspace
Shaded 3D maps
New viewing objects: Tacho, large number, bar gauge and more
Custom calculated maps
Data-log playback
Various wizards for common tasks
User defined colour schemes
Start templates for ECUs, diff controllers and individual products
New map functions: Fill, smooth, custom scripting
Improved PC-Logging setup

The GEMS Calibration Upload Tool is designed to make it easy to upload calibration files to programmable GEMS ECUs. It is a free tool that gives users, who do not need to make changes to thier map/setup, an option to GWv4.
Features
Uploads calibrations
Verify calibrations
Simple user interface