It's an accepted part of hot rodding lore that headers help make more power and torque on any engine versus the typical stock cast manifold, but do you know why? It's all about flow, right? Well, yes ...

Headers are among the most widely used pieces of speed equipment; tubular steel exhaust replacement components are found on virtually every form of performance-oriented engine. Thus headers are always ...

Headers are one of the easiest bolt-on accessories you can use to improve an engine's performance. The purpose of headers on a car is to make it easier for the engine to push exhaust gases out of the ...

Chances are your header (or headers) has probably seen better days, especially if you put quite a few miles on your project car or daily driver. The constant heat cycling, occasional wet conditions, ...

It's a candy store out there for Porsche 951s when it comes to performance upgrades. So many tuners to choose from, so many different parts, and I would test them all if I could. But, because of ...