[gothchick]

I have both UTEC and Orisis(UpRev) on my NA.

I am keeping my UTEC because it allows me to make tuning adjustments on the fly whenever, wherever, and however I want.

I got my ECU reflashed with Orisis so the ECU would stop randomly flipping between it's five internal maps (which was messing with my UTEC tune). Orisis has effectively locked my ECU down to ONE map at a time that is manually selectable 1~5.

This has allowed me to dial in my UTEC tune with great precision and stability. The problem with mail-in tunes is that they're just approximations. They're better than nothing, but not as good as an ol' fashioned dyno + road tune.

So imho, if you're NA running a MAF based tune, UTEC and Orisis combined gives you the best of both worlds.

If UpRev ever comes out with a self-tunable version of Orisis, then there'd be no reason for UTEC (accept for UTEC's superior ability to detect and react to knock compared to the weak-sauce ECU), so that may still be a good reason to keep UTEC.