Dual Exhaust
I have a 2007 Lincoln Mark LT, it has duals from the muffler back I wanted to put a Dyno-Flow Muffler on which would be just one muffler. Out of curiosity I asked the mechanic about dual from the engi...
Forum Discussion
You can do anything you wan't after the cat (also you cannot change the configuration of the cat(s)). Anything before and including the cat is a federal no-no unless the new part has a CARB no.
