Everybody knows that a choked-up exhaust system hurts engine performance, which means slower e.t. 's at the dragstrip. Freeing up the exhaust system by upgrading to a dual exhaust pipe setup with ...

Such juvenile antics aside, the real reason why hot rodders engage in the venerable practice of dumping their exhaust in front of their mufflers is to pick up a few extra ponies at the track. It works ...