If you are serious about your all-motor power, then a custom header is going to be mandatory for your project vehicle. By this point your motor is built to the limit or near-limit. You have high ...

Hot Rod school is now in session. For the benefit of first-timers we'll begin with a primer on exhaust header basics, your first logical step towards improved automotive performance. Not only will we ...

When it comes to performance there is but one steadfast rule: All the good air that goes into making horsepower must eventually find its way out. This means that the addition of everything from ...

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 ...