The inline-4 engine has become a standard powertrain across most automakers' vehicle lineups, due mostly to its small size and efficiency. But, have you ever wondered how inline-4 engine actually ...

We dig into some aspects of intake manifolds that you may not have contemplated, fully understood, or thought worthy of further thought. You may discover some useful information. When you consider ...

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 ...