Profec is much simpler than an AVC-R, and cheaper, but there's a reason why. The AVC-R is a far more detailed and feature filled unit allowing you to do things with it that the Profec doesn't do. Hell, you even get (to a small extent) data logging with the AVC-R. Real-time 2D mapping, boost per gear, self-learning, individual uder-definable soleniod duty settings (up to 8), ability to monitor up to 4 data channels at once from a selection of 6 items... trust me, there's a GOOD reason why the AVC-R is as much at it is. If you have the paitence for it, I'd go with the AVC-R no doubt. Yes it's a pain in the ass sometimes and *** knows I've reset mine like 10 times just to start over, but it's a badass EBC!
