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 ...

Plenty of aftermarket sellers stock breather bolts for Harley-Davidsons. But what are they? And is it a good idea to install ...

There's a prevalent myth in the enthusiast community that motorcycles like Harley-Davidsons need back pressure, but is it true? Here's what to know.