Upgrading '99 exhaust to '03 S exhaust

I dont think the 03S exhaust will make any difference only cosmetic, am i right?

[Cloudsurfer]

The 03 exhausts are a bit throatier, however I dont see why it wouldnt be a bolt on affair, as to my knowledge the differences are the mid pipe and headers, particularly that junction, but as far as I know the rear exhaust is the same for all years.

Patrick