I posted this exact poll and question two weeks ago. I had a set of equals for free and went ahead and swapped out the unequals for the equals. I haven't been able to drive it all all after the swap because the headers didn't mount up flush to my H-pipe. Well, I just happened to have a off-road X-pipe laying around that was the two peice, so I put it on. The leak got better but still not there yet, now I am looking for a trailor to borrow to bring it up to the muffler shop to fix for me. This was supposed to be a routine header swap. CRAP!
If you go with the equals, I found it to be an easy install by unbolting the passenger motor mount jacking up the motor about an inch on that side, the driverside went in smooth. Good luck to you