When you think of MSD in the past - you just thought 'spark'. Well that has changed in the last few years as MSD has moved into data acquisition and fuel injection systems. In this video we took a trip to MSD to check out their new MSD MEFI 4 ECU software which is a pretty trick EFI system. Basically, it's easy to use, comes pre-programmed for use on a ton of different GM engines, and include both a Wide Band 02 Technology but also this pretty trick InGenuis software. Enjoy.