I’ve been thinking about this as well for a long time, and the new mpvi2 setup looks sweet and has a lower initial cost to get started. I fear the learning curve might be a little steep though. I’m just tired of having to pay for a retune every time I make a simple change.
I’d love to learn to tune myself as well, but I’m nervous about doing it. Tired of depending on tuners, wondering if they’ve set the tune up right for my setup, waiting for revisions, paying every time I make a change.
It’s pretty straightforward. Make sure that the diff you buy comes with a manual flange. My used iron 3.31 diff came with an auto flange somehow. Didn’t realize til it was in the car. Fun job to swap that.