Along with a better-flowing intake and exhaust system, headers are among the first bolt-ons that any naturally-aspirated believer has got to consider. Together they help eliminate restrictions within ...

We all know that exhaust headers were originally designed as a performance product. The equal-length pipes were designed to allow the exhaust gases to escape the cylinder, while at the same time ...

It's been a while, but we finally dragged out the Circle Track dyno mule for a new round of testing. This time around the idea came from a bench racing session where we were talking about different ...

Buying a new combine rarely involved much discussion about header options when there was no choice other than to decide what width to hook on the front. But that has changed with the advent of ...