What is it about exhaust scavenging, headers, and systems that leave us in a perpetual fog? Shorty ... medium ... long-tube? Pipe size? What collector type? Which is ...

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 ...

Since the internal combustion engine is nothing more than an air pump the exhaust system is a very important part of the system. You know the story, air in, air out. In the world of street rodding ...