Ok, we've done header tests in the past, comparing various styles and sizes on moderate to high-powered street-style mills. In the case of the big-block Mopar, the default favorite tube size has long ...

In the world of engine hop-up components, headers are truly a win-win-win deal. They can deliver measurably better torque, horsepower, and mileage. When swapping out factory iron manifolds for headers ...

At its core, an exhaust system is nothing more than a series of pipes that route toxic fumes from the engine to the back of a car. At least that's what they thought back when outhouses were still in ...