Turns out our math teachers were right. We really will use this stuff! Crazy!

Check out this video and learn how to get the most power and performance from your machine by calculating the perfect diameter for your header primary tubes.

Author: Matt Griswold

After a 10-year newspaper journalism career, Matt Griswold spent another decade writing about the automotive aftermarket and motorsports. He was part of the original OnAllCylinders editorial team when it launched in 2012.