The next time you see a semi truck rumbling down the highway, pay attention to the vertical exhaust stacks rising up from behind the cab. These exhaust pipes aren't just for aesthetic purposes: These ...

In this video, we upgrade a budget-friendly super truck with a premium aftermarket exhaust system. The installation takes place in the workshop, where the factory setup is removed and replaced with a ...

We're all interested in getting more power and mileage from our sport trucks. The question is how to get it. Two of the most popular bolt-on performance parts are free-flowing intake and exhaust ...

Diesel Exhaust Fluid (DEF) is a crucial component in modern diesel vehicles, introduced to comply with US Environmental Protection Agency (EPA) regulations that began in 2010. It's a solution made up ...

Increasingly stringent diesel engine exhaust emissions regulations have, over the past 20 years, reduced output of nitrogen oxides (NOx) by 95% and particulate emissions by 90% in heavy trucks. These ...

Add Yahoo as a preferred source to see more of our stories on Google. Best deals on car & truck parts you can buy on eBay. (Photo via Getty Images) (Patchareeporn Sakoolchai via Getty Images) If ...

Next to the suspension, the exhaust system of your gasoline-fueled four-cycle truck engine is perhaps the most misunderstood bolt-on performance combination on the market. The basic concept of ...