Since the days of relieving flathead Fords, we've known about the advantage of porting. Grind those critical passages with the right touch, and airflow through the engine improves-and with more air ...

Gasoline engines burn a mixture of fuel and air. In order to create horsepower, your engine must maintain a good quantity and velocity of air/fuel charge into the combustion chamber. Think of the ...

If you're an enthusiast like me, you too, are a member of a web forum(s) that relates to your car and/or engine swap that provides a rich source of technical information. For me, it's the K-series ...

Have you ever wondered if the parts you're using are the best ones for your application? We sure have, which is why we take advantage of any opportunity to test a variety of parts and pass along the ...

Long before I bought my 2011 BMW 128i, I’d heard of a factory-sourced modification called the three-stage intake manifold. It’s quite possibly the most talked-about modification among those who ...

In diesel performance, achieving optimal airflow is the cornerstone to unlocking your engine’s full potential. For owners of the 6.7L Cummins, upgrading the intake system is a popular and effective ...

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 ...

VW and its partners on the air intake manifold project, which was first discussed in 2009 at a conference in Germany (see our initial report here) and now has placed PP manifolds on a wide variety of ...

The penetration of polymer-based components in automotive engines tends to be evolutionary. After extensive testing and development, a plastic or composite component is introduced on a single model, ...