On a 5.7 HEMI, shorty headers promise easy bolt-on power without turning your daily driver into a race-only project. The real question is how much horsepower they actually add compared with stock ...

Conventional wisdom has it that long-tube headers offer more performance than short-tube headers, albeit at more expense and installation effort. We decided to test that conventional wisdom and share ...

When modding a car’s exhaust, we oftentimes think about the design of the tips or the mufflers at first. But the headers shouldn’t be taken out of the equation because their role is to help the ...

I first met Jack Burns about ten years ago. At that time, I was working over cylinder heads for Trans Am, ASA, and BGN series engines at a great shop called CRD Engineering. Jack was experimenting ...

A: Alphawerks' JDM equal length stainless steel headers USDM 350Z. The headers are imported and tested by Nexus Industry. To assure power in any environment the Alphawerks headers were dyno tested in ...

Get our GM news straight to your inbox. We'll send you one or two emails a day with the latest GM news coverage. It's totally free.