Last month we bolted a set of slapper bars onto our '71 Chevy Nova and were stumped when they didn't prove to be a magic solution to the car's traction problems. We were already running slicks (Mickey ...

As self-proclaimed performance-minded gearheads, we are always striving to achieve the maximum horsepower from our engines. Whether it's an external or internal component that improves horsepower, we ...

As easy as it is to double (or even triple) the power output of the modern diesel truck, that power is very hard on stock drivelines, suspensions, and axles. The most common side effect truck owners ...