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 ...

Editor's Note: As inanimate as intake manifolds may appear, they provide a path to both major and minor on-track power gains. Selection is one thing; "tuning" them to specific applications is a blend ...

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 ...

The Special K swap is the Holy Grail of Honda swaps currently, giving Civics from as far back as the EF era of the early ’90s more displacement and 21st century power and technology. In many cases ...

An upgrade to a premium air intake manifold delivers significant performance breakthroughs to enthusiasts who care about vehicle enhancement. All car owners who drive 6.7 Cummins diesel engines and ...

In our last issue, we assembled a number of different 5.4 intake manifolds and compared them to the factory Navigator intake assembly on a modified 5.4L Four-Valve motor ("Factory Fast Vs. Advanced ...

Diesel engines are durable and capable, but it's easy to overlook one particular quirk regarding the intake manifold that should otherwise be regularly checked.