Pacesetters are welded up into a two piece header. I also got the ported Gen 3 installed. It took a couple pulls to get pe dialed in at 0 again but all is well. The header flanges did need to be ground down in a few spots to avoid hitting the head studs. No leaks though which is nice.

Idle clip open header
http://https://youtu.be/QCkDOwJCvwc