It might be hot rodding’s first commandment: “Thou Shalt Install a Dual Exhaust on Thine Muscle Car.” And for good reason: the symmetry improves the sound and exhaust tuning of our favorite V-8 ...
When I was a kid back in the late 1940s and early '50s, you had to have a dual exhaust system. I think most of the new cars that have two tailpipes use the "cat back" system, running the dual exhaust ...