I've seen a whole bunch of these on the net, and they all claim to be the best.

But, which one do you guys truely suggest? Hypertech is a pretty established name, and I see pretty good reviews about the Predator.

Any thoughts or opinions on this?

 

I know this message is old BUT, I just got a predator for my 5.3L
silverado and did the performane 91-93 octane tune plus upped
the mph max from 98 to 125 ( that 98 was an unpleasant suprise to me).

I really feel the difference, it sounds and feels better and the
shifts at WOT are kick but, but with all the wet roads today
it was a little spooky to bust em loose at 60 in the rain.
Yet the shifts when mellow feel normal.

I'm sold on it.