Very nice, hope that noise is an easy fix! So, I'm guessing you spent less than me on it; what did you end up spending when it was all done? Although with the fabing of the front pipe you might have still spent as much?
I dunno man, 6 of 1 half dozen of the other. I can't remember what the kits cost online but I paid $550 for custom. That included the muffler that my exhaust guy got cheaper than I could online. 2.5" 100% stainless. I have never heard a GTR in person and I can't really tell the difference listening to the videos. I do know it does not have a tinny pop on roll back just a growl. I have bad hearing anyway for 13 years building and testing jet engines so... I get allot of compliments on it. Another customer at the exhaust shop said it did not sound like a V6. I don't think it sounds like a v8 but maybe a V6 and a half...lol.
I think the X pipe has something to do with the different sound.
I seems to really make a difference at higher RPM's I think I lost a bit of low end torque. Driving on the HWY at 65 drop into 3rd and nail it, sets you back in the seat pretty good.
Did a dashhawk 0-60 it was 5.9...not sure how accurate it is. I had allot of wheel spin and hop. I wish I could get rid of that hop as well.
Not sure what that noise is in the exhaust. It almost sounds like air rushing through pipe but I have never heard anything like that before. Sort of a high frequency rattle.
Took it to the shop but exhaust guy could not put his finger on it, it was on saturday so not much time to look at it. Will take it up there pretty soon on a weekday if I get the time. It's really irritating.