It's a story as old as hot rodding itself. It starts with the sales pitch-"Buy my widget and your engine will gain 50 hp"-and ends with a disappointed customer with a car that sure doesn't feel like ...

Over the past decade, chassis dynos have proliferated across the country, in theory making it practical for the masses to evaluate the performance of their engine as installed in the vehicle and ...

The GM performance enthusiast quickly recognized and embraced the benefit of instrumented testing in its ability to extract the most power from an engine. This was in part due to the acceptance of ...

It is hard to hear the improved sound of the Hooker BlackHeart stainless exhaust we added to the Fake Snake in a magazine article, so we took the Mustang out for a drive so you can hear it for ...