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 ...

We Get Our Hands On One Of The First C&L Performance Three-Valve Intake Manifolds--It Added 27 RWHP. During the summer of 2008, C&L Performance made a surprise announcement--it was nearing completion ...

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 ...

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 ...