Your intake manifold. It takes in air and sends it to your engine's combustion chamber. This is basically the start of the combustion process. After all, you can't have combustion without air.

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 Honda Civic brags a rich automotive heritage dating back to the first generation '72 model, with its 1.2L engine delivering 60 hp. Eight generations have passed since the Civic's debut, and the ...

There is no question that the DOHC 5.0L Coyote engine has taken Mustang performance to new levels, and the spotlight, but if you have a Three-Valve 4.6L, there are still a lot of performance options ...

In a naturally aspirated engine, as air comes in through the intake and passes through the throttle body, you've traditionally had two setups for what happens next. Using longer, narrower intake ...

Porsche often does things backwards—just look at the 911, keeper of the rear-engine flame. But that philosophy extends to smaller things, too, as Jason Fenske of the YouTube channel Engineering ...

The MAP sensor is an important part of a car's operating system. But lots of things can make it go bad. Here's how you'll ...

Sponsored Content. We may receive a commission on purchases made from links. The 6.7-liter Cummins turbodiesel inline-6 is one of the most widely used diesel engines out there. It has been fitted to ...

In 1959, you could buy a multi-carburetor intake manifold for just about any American-made engine from Warshawsky & Company (which became J.C. Whitney soon after).

QUESTION: I was just informed the coolant leak in my GMC Yukon is due to a leaking intake manifold gasket. Apparently this is a common problem. I was shocked at the price quoted for the repair and am ...