Bolted directly to the engine block, the exhaust manifold is the first section of a vehicle’s exhaust system. It funnels exhaust gases from all the cylinders and routes them to the car’s ...

Car exhaust flame throwers work by interrupting the spark to the engine. This dumps raw fuel into the exhaust system. The fuel is ignited by a coil and spark plug placed right before the exhaust tip.

Of these, brake dust is often the main contributor, but it's not yet subject to regulation. There is much less known about ...

The combustion engines in gas-powered cars are pretty inefficient, because most of the energy they use — about 70 percent — ...

It is critical because, unlike other issues, exhaust smoke is linked directly to the car's engine. The respiratory ... and carbon dioxide (CO2) as the main byproducts. These gases are invisible ...

Combustion engines only use a quarter of the fuel’s potential energy while the rest is lost as heat through exhaust. Now, a ...

although it's difficult to speculate on what effects the increased exhaust backpressure may have on the engine's efficiency. Generally speaking, engines optimized for higher-RPM use would suffer ...

The catalytic converter is located upstream of the muffler, close to the engine, and it changes environmentally damaging pollutants in the exhaust stream into more benign gases. Under extreme heat ...