It will also move the power further up the rev range. I put '99 headers on my carbed '98 bird some years ago.
The cans are the same, except that more recent models have cats. I currently have the non cat '98 cans from my carbed 'bird on my '07 'bird. Straight swap and much less chance of the kids getting burned by brushing against the mid pipes when I get home from work. (Take a trip to the burns ward of a kids hospital for all the motivation you need there...) And I don't have a garage to lock it in & keep them out after getting home.