In the first installment we dealt with the essentials of spec intake manifolds. The story was intended to establish a level of understanding that would enable more specific information to be helpful, ...

Among theories advanced to explain the phenomenon, there appear to be two prevailing concepts that deal with the "tuning" of intake and exhaust systems. One involves the study and application of how ...

How To Tune Intakes For More Horsepower Intake manifold tuning is critical for ensuring optimum horsepower across a wide rev range. Longer, narrower intake runners lend themselves well to low RPM ...

Your car deserves a breath of fresh air, so let's dive into the aftermarket for a bit more power, efficiency, and beauty under the hood. Before we consider any ...

Last month we showed what gains were available from three aftermarket Three-Valve intake manifolds in naturally aspirated trim. This month we're going to try the same three intakes, only now we'll see ...

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 ...