D@MN!!! That looks GOOD!!! I'm diggin those QTECs. Do they leak at all or anything. That'd be my only concern.
BAD@$$
I meant to add that though my tuner prefers Kooks, I think the ARH are at least as good a product. Also, with they merge collector, I believe the scavanging would be even better. They also have so many options, they can make exactly what you need. I know Koos has almost the same options, but, at least in the past, you had to pay a lot more for true merge colllectors. I know they revised their collectors, something like a year ago, however, the ARHs are true merge collectors. I haven't had either of them, however, I've had two sets of QTP LTs - one with standard collectors, and a second set with their high velocity merge collectors. I can tell you that I gained 10+ RWHP on the same dyno with the merge collectors. Conditions were even worse too with the merge collector tests.
IMVHO - if you can afford merge collectors; get 'em. It's been said that each engine and combination is different, the you have to actually tune the collectors and primaries to extract maximum power, however, these go a long ways toward scavanging. It's not only about flow any more; it's getting that combustion chamber completely cleared of the old used mixture and having the purist new mixture in there for maximum efficiency and power.