Going diesel has certainly limited some tuning options. I would think EGR elimination would be great for reliability - while leaving the other components. Hard to find a basic tune to get rid of the EGR. DUDMD certainly looks like an interesting option for just performance.
https://www.dudmd.net/collections/bm...14892021547050
Do these engines handle the tunes well enough? EA888 and EJ series motors I am used to ran to nearly 200k with no issues on stage 1 or 2.