The EJ-series flat-four has ruled the Subaru universe since it debuted in the 1989 Legacy. In today’s most desirable Subarus, a 2.5-liter EJ makes anywhere from 224 to 305 horsepower with belt-driven ...

It might seem that the intake manifold is one of the simplest components on an engine. After all, the purpose of the intake is to provide a series of passages to join the carburetor with the intake ...

For most gearheads, there's nothing quite thrilling like the roar of a tuned engine and the instant kick of improved acceleration. Of course, buying a muscle car to enjoy lots of raw power and torque ...

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 ...