Hey guys im doing some major work to my truck and im doing a set of headers and the magnaflow cats. I have a set of stock mustang 5.0L headers that im using and the dumps are a bit diffrent from the stock manifolds and i was wondering whats the best way to get the magna flow cat to line up with out killing myself?

These are what my headers look like.
Pace Setter 70-1322 Pace Setter Painted Headers for Trucks=

 

We all have thought of using cheap mustang headers, and quite a few have tried to prove that they can be used. Yes they fit and can be used, but with a lot of work.
While they look like the ones you linked us to, they are not the same as you have found.
You'll need to cut and remake your y-pipe to fit the mustang headers. Also, stock mustang "headers" blow. Are you meaning aftermarket mustang headers or stock ones with the crimped pipes and stuff.

Did you buy a magnaflow cat or the whole ypipe with cat.

 

I have the whole Y pipe. Im not sure if there stock mustang headers or not. They might be something like MAC headers a freind gave me them off his mustang motor when he replaced his. Ive had them kicking around and figured they would be better then the stock manifolds that i had