Got mine installed last night. It's been sitting in my living room unboxed for like a week! I was so MF antsy and wanted it installed the day it arrived, but was busy working. Boyyyy was it worth the wait. This is how the z should sound off of the assembly line. Non res cf and hfc's. Everyone at the shop, including myself, was amazed at the quality and craftsmanship. I think I'll start saving for that over priced TT kit. (;
P.S. demon bolts on both cats was the top bolt that is reached from the bay. The drivers side split an impact socket and took about an hour of muscling and impacting with a 3ft extension to finally come off. I'm glad I didn't attempt this at home!