Infinity 5 is like 1500 bucks, then the PNP harness is another 300 bucks. Then not to mention it doesn't have a MAP sensor. And a 10x10 lambda table.
I have a big distrust with AEM now. A while ago, I was working on a V6 civic. The car was DUMPING fuel into Cylinder 5. I called them, and they said it was an issue with setup. I sent it back (they charged me 125 dollars), and they fixed a "power driver". Keep in mind, this soldier bought this unit from me before he deployed, and I finally opened it when he was about to return (a year).
I told them this, and told me to send it in. When I got it back, it DID THE EXACT SAME THING. I called to complain, at that point they told me they found no fault in the unit. I asked them why they charged me for fixing a "power driver" if nothing was wrong. So fed up, I find a spare output, and changed it to fire off cylinder 5. And voila, fixed.
AEM's customer support is terrible. Sure, I'm just one guy, but how many other "one guy"'s like myself have been treated this way?
EMU on the other hand, superb customer support. When I first tried their DET3 unit, I was having some issues, a quick phone call was all it took, but I digress.
EMU is constantly updating their software, since I've been onboard, they have updated their software 3-4 times already. They take in suggestions from customers on their forums, and they try to add it in the next software update. They aren't a big powerhouse like AEM currently is, but I know they will eventually overtake them.