The whole affair started several months ago when an inquisitive reader posed the seemingly simple question: "If Incognito mufflers cost $50 a pair and Phantom mufflers, which look identical, cost $30 ...

The main thing that separates hot street cars from race cars is mufflers. Heck, you've got blowers, injectors, roller cams, ported heads, and anything else you can name on street cars these days.

One of the things that enthusiasts love the most about cars, and probably one of the most common reasons someone becomes a ...