Today's exhaust-system technology has come a long way from the days of punching holes in your dad's muffler or bolting a glass-pack onto your '65 Mustang. Sophisticated hot rodders realize that before ...

Smog-Legal Killer goes from a 2.5- to a 3-inch exhaust, and we upgrade the headers from 15⁄8 to 13⁄4 inches and add EPA-certified high-performance cats. It's an age-old question that's nearly ...

The downside was that the race-only exhaust was just a bit too loud. We couldn't use the car as aggressively as we intended, and it often sounded like we were driving with reckless abandon when all we ...

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 ...