Now thats where it gets tricky. I dont think so. After you get the cat you will have to get flex pipe (youll need a flex pipe with the Race header also) and then take the car to a mufflet shop to have them build as system form the Flex back since there is no aftermarket exhaust sytem for the tour zetec( not a good any way) if your going N/A all the way you will want 2.25 flex and exhaust if you plan on upgrading to a turbo you will want 2.5 flex and exhaust.
If you can weld your self you can bulid your own exhaust. If not take it to a shop.