Well Many people have put the SVT exhaust on there non-svt contours and it looks good. But as you asked before, there are other cat-backs that are available. The Brullen Cat-Back in the Group Buy section will fit all Duratec engines and it is one of the highest HP dynoed systems out there for our cars. Or you could look in the classifieds for an SVT cat-back. Mine is in the classifieds because I'm going with the Brullen. Hope this helps.
