i tried to fit my buddies old magnaflow Exhaust from his 01 focus on my 07. we all know that ford swapped the duratec motors in the foci starting in 05 and some 03-04s .. the headers is in the rear instead of up front there for we didnt know if his cat back would fit. so we gave it about an hour and it was a perfect fit, the only problem was it deletes your second cat. but who cares really. so from 2000-2007 ford did not change bolt up patterns at all. if your wanting a flex back for your focus but cant find them. buy an Exhaust for an earlier model and it will delete the cat.
Ford Focus Magnaflow
My 2002 Ford Focus ZTS. Chech other my videos for more. The car currently
has only the Exhaust, de-badged, and
other small things, more to come.