Crossover is always at 5252 rpm because HP is calculated from torque according to this formula:
HP = (Torque x RPM) / 5252

You might have different scales for torque and HP which would visually throw that off on the printout.

Heh, good point. Why on earth they put two different scales down the sides of the paper for values that are so close to each other is beyond me :)

Great thread here. Lots of good info. To answer some of your questions, the Berk HFC's locate the flanges & support braces at the same points as the OEM cats. They will fit the same as the OEM cats do.

Every exhaust will take a tiny bit of adjustment in order to line everything up correctly. With slip fits you have even more adjustment available in the alingment of the pipes. On tip that will ease fitment issues is tighten bolts/slip fits from the header towards the exhaust tips. It's easier to straighten things towards the end of the exhaust vs. the middle of the exhaust.

Out of curiosity, do any of you guys with the OEM cats and aftermarket exhausts hit that same part of the car under there?

Cheers guys!

RCZ's exhaust hits the crossmember, and he has the stock cats still.

Yup, mine has stock cats and it was sitting on the cross member. All fixed now.