Al Suwaidi, Yes I heard from Gary that V6 kit fits the V8 in exception of the front dam so you can buy it in pieces from him. The front dam of the V6 have bigger holes than the V8, but the V8 fascia looks good too.
http://www.camaro5.com/forums/showthread.php?t=61730
The exhaust holes are
5 inches wide so no problem, it will fit your V8 for sure. My Magna flow tip is 4 inches wide (bigger than V8 stock) and you can see that in the photo, there is some room for more.
The alignment of the tips took me a whole day man, you need to make sure that your tip goes through 2 holes (The stock rear dam and the Razzi one too), and it doesnt touch the body otherwise your kit is gone, especially with Magna flow tips they can turn into oven
If you need any advice, just PM me.
I bought my kit painted from Carid but Gary was a great help.