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 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 ...

We only halfway realized what we were getting ourselves into when we got our '66 Mustang project car. Having more experience with the '68 Camaro, I didn't know much about the differences between early ...

Stuttgart engineers did one heck of a job with the overall design of the Porsche 951. By increasing boost, matched with the correct amount of fuel, we can get easy horsepower gains. But trying to ...

NHRA has announced that the angle of the headers on Funny Cars would become standardized starting with the Mopar Mile-High NHRA Nationals, outside of Denver, Colorado. This process of angling the ...

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 ...