e-dOOd..exhausts systems may be alittle over rated..bolting on a full system may save you a few pounds of over stock and the horspower gain maybe somewhere between 0 and 10..
so, the best thing would be for you to pick a system you can relate to(visually and price wise) cause there all really close in what they do..
some of the old(last year or two) sportbike magazines have articles on sets of various systems..i have one or two of these articles..if you would like i could send them to you.....if you promise to return them!!!!!
but bottom line is what you like "looking and listening to".. also, id take a run out on highway 74, theres a spot at the end of the road(lake elsinore) where bikes gather..take a listen to some of the bikes like yours..