I've been looking around and I'm wondering. Is there any difference in the exhausts of our Celica's and that of the 93-97 Corollas? Because they seem to look similar in their bends and lengths. Could someone correct me or give me a word on this? 
Differences in Bends and Length? - 6G Celicas Forums
If you are looking to buy an exhaust for your car why don't you just get it custom made. It will most likely be a hell of a lot cheaper. But as far as the bends they do look kind of similar but without seeing any measurements you'll never know.
If you are referencing the header down pipe then yes there is a difference at the end of it where it connects to the rest of the exhaust. The rest would be something you would have to compare.