When I got this car they had the flowmasters end right under the back seat. It sounded pretty good but driving through town the whole car would resonate and it was just too loud. So I went to this shop that has bent pipe for me before and I had him extend the pipes to the rear. It sounds fantastic now. I was going to buy the tips from Pypes but he actually had these in stock so I had it done right then and there. Personally I think this is the best possible look for the Camaro.
http://i484.photobucket.com/albums/rr206/TonMin/Camaro/P1010121crop.jpg

they look good, but i personally like it when they dump down behind the wheel...

They look great and shinny, I like it when then come out straight out of the rear!

Behind the wheels (which I have) or straight back, it's all personal taste. That said, the combination of your color, wheels and tips looks really good.