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 ...

The smoother the transition from high exhaust pressure within a header's primary pipe to atmospheric pressure at the end of the pipe, the longer the reflected pressure wave's duration—and that makes ...

If you plan to upgrade your car on a budget, most car enthusiasts often start with the engine's air intake system and a performance exhaust. Add-ons like a cold air intake or a straight pipe will let ...

Equipped with two powerful Merlin V-12s, the de Havilland Mosquito wings its way across the skies … Wait a minute, one, two, three, four, five … If the Mosquito has V-12s, why are there only five ...

A catalytic converter is an integral part of a car’s overall exhaust system. However, while they are normally something a car owner would never think about, thefts of catalytic converters spiked to ...

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 ...