Man, those are beautiful! I can't wait to get mine (hopefully I'll be able to order them next week).
Can anyone tell me which (if any) stock studs can be used with headers? I don't know about you, but I'd like to avoid bolts as much as possible on an aluminum head without helicoils.
Oh and as far as the flange that is cut, it is because that whole pipe is a slip fit down by the collector which makes it a little easier to install according to Kooks. They say you can install there Headers with the K-member installed. My K-member will be out which should make the whole thing a lot easier.