Just received my Megasquirt 3 full standalone kit. This will allow me to trash the stock computer on the 06 LS 5.3 engine and run a fully customizable ecu. With this ECU I will be able to run digital gauges and the tuning possibilities are endless!
Checkout this video of a MegaTunix (digital gauges software) connecting to a Megasquirt Engine ECU to power the gauges.
Here is a picture of my unassembled Megasquirt 3 with the expansion card for sequential fuel injection!
Current status of the build: