I emailed them a while ago asking how their tunes perform with non-Dinan equivalents. They said as long as they provide similar performance benefits, you'll be getting the benefit of the tune. Their tunes are made specifically with their stuff, so it's going to give the best results with their stuff, but I'd say if you have similar items then it's probably good. I don't know what they change in terms of throttle response and stuff....That would be interesting to know.
I'm going to get myself a tune next month I think. 401 ft-lbs