Is an intake manifold an important part of a performance LS build? The answer is, obviously, yes. One need only look at the peak power difference between the least and most powerful intakes in this ...

Nothing ever stays the same for long-technology makes sure of that. Not all that long ago, high-tech was a digital electronic ignition system. Today, the new LS1 and LS6 GM engines are pushing the ...

Before we begin, let us recap the premise of this story. In our October 2008 issue, we did a story called "Generation Gap." In it, we took a stock 5.3L LS1 engine from a wrecked '02 Suburban, then ...

Gearheads can now get a 20 hp performance boost over stock GM LSI/LS6 engines with the first composite aftermarket manifold from Fuel-Air-Spark Technologies, Ashland, Miss. The LSX intake is injection ...

Now that we have a better understanding of why headers work, the question now becomes do they work in the presence of boost? To find out, we decided to run a series of tests by comparing headers ...