The engines that power the vehicles we drive are exceptional machines. They're capable of generating insane amounts of power in a relatively confined space, and they can generally be expected to ...

An integrated Exhaust Manifold, or "headifold," is an exhaust manifold cast into an engine's cylinder head and cooled by antifreeze. This type of design, where the exhaust manifold is no longer a ...

A stock LS3 rec-port intake manifold is hard to beat and only costs $299. When Chevy went back to the drawing board after the success of the cathedral-port Gen III LS1 small-block V-8, it realized ...

Now that we have a better understanding of why headers work, the question now becomes do they work in the presence of boost? To find out, we decided to run a series of tests by comparing headers ...

The saying goes, “Eat, Sleep, Jeep.” We got the last one covered with plenty of Jeeping, and generally sleeping occurs when we are too tired to Jeep. As for eats, we love them and try to squeeze them ...

A service update has been issued for certain 2021 model-year GM trucks and SUVs over an issue related to the vehicles’ engine manifold pressure sensor. The problem: affected GM trucks and SUVs may ...

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 ...

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 ...

The intake manifold on your Toyota VVTi engine is represented by those plastic tubes that reunite at some point in a large tube right behind the radiator. Their function is to allow filtered air to ...

Upgrading the exhaust is one of the first steps many take when they want to boost their car's performance. One of most obvious choices in this regard is to install a header in place of the stock ...