Interchangeable exhausts

will these headers
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2456954516&category=33631
and a stock h pipe off an 87-93 mustang fit on a 79 5.0 capri?
i also have a borla cat back on there right now

darn emissions, my long tubes and straight pipes are gonna fail got the headers and h pipe for a total of 110 bucks. good deal. but i need to know if they are gonna fit.

my current set up is long tubes w/ straight pipes. an h pipe w/ cats cost an arm and a leg. but i found this one for 60 bucks almost new. but it wont fit with my long tubes so i had to go find a cheap pair of shoties to match it. this is the easiest way i can think of to do this. he also said that i need a smog pump. he said it doesnt even matter if its working as long as its there. i wonder if it even needs to have a belt around it.