More power. It’s what almost every owner wants from their car, truck, or SUV, but the question is how do you get it? There ...

And so it began the eternal quest for higher performance. If you're even only a passive enthusiast, you know that at its core, Otto's world-changing contribution to modern civilization is an air pump.

Horsepower drops happen gradually, but it's measurable. Find out how a DIY check can expose performance changes and help trace the root of mechanical problems.

Horsepower is often one of the first statistics mentioned in the same breath as a car's make and model, especially within performance circles. It's quite an important number, to be certain; the bigger ...