Tightening pattern on 603 intake?
 

Is there one? The braingears stuff didn't mention one. I'm concerned because I'm aware that this intake is aluminum, and I do not want to warp it. Do I just go down the line and tighten? Do I tighten randomly? Help!

pulled mine off a couple of times and no specific tightening pattern. Works fine and you don't need to have the bolts ultrasnug (25 Nm is not a lot). It seals fine with no leaks.

It's not like the cam or the head where you need to even out pressure due to competing forces (e.g. springs putting pressure on certain cam lobes which will put pressure on the shaft).