If you replace the cat, you cant have TRUE duals since there is only one cat. The SVT exhaust would work fine. Its not a true dual setup, but its a direct bolt on, just requiring a hanger for the passenger side.
-Ken V.
1998.5 SE Praire Tan Zetec ATX
psycho_bass@hotmail.com
Roush springs Roush rear sway bar BAT struts 17" Millie Miglia HT3 and a ton of subtle asthetic mods