The idea that Harley-Davidson engines need exhaust backpressure to produce power is one of the most persistent beliefs in the motorcycle world. Riders who bolt on straight pipes often report a loss of ...

Conventional wisdom says exhaust backpressure is bad. If you want to maximize horsepower, the thinking goes, you have to minimize backpressure. Consider the ultimate low-restriction exhaust system: A ...

When we have an automotive concept that involves complex science, we know just who to turn to for a proper explanation. That would be Jason Fenske from Engineering Explained. Today's concept is all ...

For decades, hot rodders have considered exhaust systems disposable commodities. When you wanted to go fast, you had to dump the exhaust. Lakes pipes and undercar cutouts were popular before a few ...

An exhaust brake is an effective cure for this problem. Mounted on the discharge side of the turbo or in the exhaust pipe, an exhaust brake incorporates a butterfly valve that creates exhaust ...

Upgrading the exhaust is one of the first steps many take when they want to boost their car's performance. One of most obvious choices in this regard is to install a header in place of the stock ...