This dumps raw fuel into the exhaust system. The fuel is ignited by a coil and spark plug placed right before the exhaust tip. Doing this will shorten the life of your engine (and pedestrians).

Replace exhaust system for better performance, but not all parts need replacing - measure flow restriction first. Use your car as a flowbench - measure exhaust backpressure to see where ...

One of few aftermarket performance parts brands that’s become a true ... its off-road exhaust range – a cat-back performance exhaust system engineered for a moderate noise level and solid ...

Catalytic converters are an important part of your car's functioning exhaust system. Here's how they work and why their parts are so valuable.

For Cummins truck owners, engine dependability and performance are crucial. The EGR system along with other emissions control maintenance systems comes with performance and maintenance problems.