OH MY GOODNESS...#1348 here just installed my fast intentions and took the Z out for a spin. I had no idea it was going to sound THIS nice!!! The low deep rumble you get at idle and low rpms with this exhaust made me feel like I had a V8 under the hood. I didn't wanna go too hard on her before heat cycling, but I've heard the higher RPM's bring the exotic sound out. I had extremely high expectations after all the reading I did during the wait period, and this system EXCEEDED those expectations. For those wondering, I went with the non resonated SS option. I do have berk HFC's as well, so I can't comment on how it sounds with the stock cats.
THANK YOU FAST INTENTIONS! I can't fully express how happy I am!!