Poowill - VQ30, Warpspeed Y-pipe, Pacesetter cat-back

Link:
http://www.youtube.com/watch?v=dKEut-2bP6A

Ok I found this link on the exhaust sound clip thread... I really like the sound of the exhaust...

But knowing this it got me confused...

the warpspeed y-pipe is 2.5 inch in diameter right?

http://www.warpspeedperformance.com/nissan.htm

and then the pacesetter is 2.25 inch in diameter...

http://forums.maxima.org/showthread.php?t=448993

So does this mean Poowill made modifications just to fit them together?

Or is there an available 2.5" for the pacesetter exhaust system?

 

Don't go near the pacesettter, just get somethign that is a full setup.