Intake manifolds may not be the most well-known automotive components, but that doesn't take away from their importance. These devices are responsible for sending a precise mixture of fuel and air to ...

If you plan to upgrade your car on a budget, most car enthusiasts often start with the engine's air intake system and a performance exhaust. Add-ons like a cold air intake or a straight pipe will let ...

OBJECTIVE: Wet flow, pressure excursions, port volume, runner length, plenum volume—all these figure into an engine's overall efficiency. But there's more… Sometimes theory is neat, but sometimes it ...

No matter how many times we test them, it still amazes us how easy it is to make power with GM's LS series of engines. Even something as ordinary as a high-mileage 5.3L will respond to boost, and do ...