sweet, ure a total newb. its all good. this a good place to learn. an catback exhaust would be all the piping from the catalytic converter back all the way to the muffler. im sure someone has somepics on here. anymore questions and we'll be glad to help. but one thing, there is search button on the top right corner, use it a lot and if nothing is found, then ask. later. and welcome.

edit: haha damn beat me to it. oh well, he said it. he was a little more thorough tho cause i though u just meant the basic exhaust.