Previous tests have shown unequal-length short-tube headers are worth around 7 hp on a near-stock 5.0 engine, while equal-length short-tubes typically pick up around 11 hp. Frankly, we were amazed at ...

Exhaust upgrades are usually one of the first things Mustang owners do. They are often fairly simple to install, not very expensive, and are manufactured by many different companies. We've done ...

We often try our best to get the most performance possible from our engines. In the search for more power, we often remove exhaust manifolds and swap them out for a set of headers. Available in ...

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, ...

Chrysler has produced the Gen-3 HEMI engine since 2003, and since that time, it has undergone some substantial changes. Beginning with the 5.7-liter HEMI, the Gen-3 HEMI platform soon included various ...

When it comes to aftermarket exhaust setups for the Chevrolet Corvette C5, C6, and C7 generations, a commonly sought-after combination is Kooks long-tube headers with a Corsa Performance cat-back ...

On a 5.7 HEMI, shorty headers promise easy bolt-on power without turning your daily driver into a race-only project. The real question is how much horsepower they actually add compared with stock ...

A catalytic converter has one primary benefit and primary one downside. First and foremost, it reduces the toxic gases and pollutants from your exhaust by… wait for it… catalyzing them. Because cats ...

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 ...