“Bigger isn’t always better,” says four-time NHRA Pro Stock champ Greg Anderson, about the diameter of exhaust header primary tubes.
In this short tech tip video from Summit Racing and Powerblock TV, you’ll hear Anderson explain that, while smaller-diameter primaries may create less volume, they generate faster exhaust-flow velocity which improves your vehicle’s low- and mid-range torque.
Mild steel is budget-friendly. Stainless steel provides the most ooomph.
In short: Tubular headers are one of the best bolt-on power adders available.
Check it out.