http://youtu.be/ZxbaPn7heRg
I'll try and get some video from outside the vehicle too. I compared this video with my previous speedo run, all things the same except its warmer out now. It now gets to 100 mph in the time it used to take to get to 95 mph, and the pull is stronger throughout the whole range, and most noticeable in 3rd in my opinion.

 

have u tuned for it yet.

 

Part throttle is done, @ wot, fueling is close, but I'm getting some kr mostly in 3rd (about 5-6* at 5200-5500). I didn't have any kr before, so I think the y pipe is still contacting the crossmember a lil at WOT. I have a jack under it and have 2" in between it now, gonna let it set like that overnight. Response is def better too.

 

I'm just curious here, is the Y pipe on the NNBS trucks different than the NBS ones?

I've seen Kooks headers and Y pipes listed as 03+ which would imply that the pipes and hookup to the catback is identical (talking about 4.8, 5.3 here. 6.2 is different).

OBX has a really nice set of 07+ headers that has no hump, and no ugly EGR port. I'm frankly a bit surprised no one has tried them on an NBS. They run around $500.

 

^^ i think the $200+ difference is why

 

Yes 09 and up uses a clamp just behind the 3rd converter. No flange and bolts. The hump is fine with me!!

 

Gotcha.

07-08 MY must have used the old style exhaust.