Ex out the bumper been around for over a 1/2 century. Popular in Jet age cars.There's also a lot of cars that have fake chrome exhaust tips molded into the rear bumper cover, which hide the actual metal tips.... And disguise whether the car is a single or dual exhaust model. Probably makes it a much simpler job to replace the exhaust system when it inevitable rusts away; no fancy chrome tip to remove and re-weld onto the new pipe. The chrome is in the plastic bumper!
1957 Cadillac Seville
Lincoln Mark II
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