Now that we have a better understanding of why headers work, the question now becomes do they work in the presence of boost? To find out, we decided to run a series of tests by comparing headers ...

One area of engine science that shows positive returns is the exhaust system, particularly from the cylinder head to the muffler. It's been proven over and over again that headers add big power, so ...

Once upon a time I had this idea: While strolling the aisles at SEMA last November-the largest automotive aftermarket trade show in the universe-amongst all the glitz that is Vegas, I spied a set of ...

If you were lucky enough to grow up around car enthusiasts, you’ve probably heard your dad, uncle, or brother say, “Nothing wakes up a V-8 like a good set of headers.” And that’s true—few Corvette ...

On a previous episode of Engine Masters, we watched David Freiburger (of Roadkill fame) and his crew run a comparison test between differently sized headers of the same long-tube variety. This time, ...

An exhaust manifold or header collects the exhaust gases from multiple cylinders into one pipe. Usually constructed of cast iron, the exhaust manifold is a pipe that conducts the exhaust gases from ...