I just got the headers on yesterday. It took about 2 hours - all the holes lined up - life is good! Two of the spark plug boots on the drivers side touch the headers, I covered them with insulation, and I'll be looking for aftermarket wires. Seat of the pants dyno, it feels like I picked up a few ponies, It's to soon to tell if I improved my fuel economy
Looks great once you get it installed
I'm pretty happy with it. You can find cheaper products, but this looks and sounds pretty good. I think it was worth the extra. My only complaint was the installation. The old came off easy, the new parts went on great. The spring clamps are junk. I couldn't get most of them tightened down enough to hold the pipes together. Ended up breaking off bolts on 4 of them. Eventually bought some standard muffler clamps and everything tightened up like it should.