mustangkid1984

cheap way to convert a single exhaust into a dual exhaust or a true dual exhaust set up

enix187

I can't find the article but it involves switching the rear passenger side brakelines with those off of a 8.8 axle that had duals from the factory, also you'd need the hangers and depending on what motor you have (assuming a 5.0) you'd need a new x-pipe, and since your in mass. i believe you have to run cats

GT350son

I did mine using 2.5 in headers from an 87 because stock manifold is 2.25in. I used that with a bbk x pipe to a flow master cat back system. I had to get hangers and remove the external fuel pump and put in an internal high pressure pump.
Was on a 84.5 gt350 with CFI