What numbers are stamped on the oem 87-93 fox mufflers? Looking for a couple sets in the salvage yard. Are the T bird 5.0 mufflers or Lincoln Mark VII mufflers identical?
Did the 91-93 mufflers have F1 like the stock cam from 91-94? Still looking this up. FYI I was at a salvage yard for mustangs and they had some 4F mufflers laying around.....
My car has factory everything LOL
O.P. Sorry I can't get you the info sooner, I will gladly get you what you need once the car comes home from storage in mid April