I am thinking of an area P exhaust, but I could piece together a zx14 header and slip ons for quite a bit cheaper. Are the headers fromt the zx14 larger then our stock headers? I know the area p headers are quite a bit larger then our stock ones. Any help would be great.

I was under the impression they were larger from what I read, but looking at them side by side, it wasn't obvious.  I can measure them tonight or tomorrow morning, and let you know.  It would be a 2010 C14 compared to a 2007 and a 2008 ZX14.

That would be awesome thanks!

Tyler I posted this on the "for sale" stuff.
A guy here at work wants to sell a ZX-14 Exhaust and a Muzzy Muffler. I have seen only a blurry photo, but if you decide you want a ZX-14 Header, this might be an option.
I have no affilaition with this, just passing word....

Ride safe, Ted

Yes, ZX14 is bigger diameter. 

Measured closest to the exhaust port, the 06/07 header measures 1.400" ID / 1.500" OD.  Looks like the 08 ZX14 is the same (harder to tell, as it's on the bike).

The 2010 C14 header measures 1.375" ID / 1.475" OD, but it was more difficult to measure accurately (not as even surfaces as the ZX).  Most spots I measured were smaller diameter.

Hope this helps.