they are diffrent... the sn95s run close to the tranny and the 99-04 run seperated from the tranny. but hell it works and they do fit. i have a bbk hpipe from a 04 cobra in my sn95
it will work ...like 98COBRA281 said they are pretty much the same car...98COBRA281 we got the bastard year...i think of it as an advantage more nowadays though...