Several aftermarket manufacturers sell engine intake air filters that they claim provide better airflow and increase a car’s horsepower and acceleration as a result. Some of these companies have many ...

A K&N cold-air intake can be worth adding to your vehicle, and it may provide moderate horsepower gains if you install it ...

Gas and diesel engines still power most vehicles and look poised to be with us for some time to come, even if their dominance is waning. Any engine that develops its power from burning fuel depends on ...

One of the first modifications many enthusiasts make to their ride is adding a cold-air intake. This replaces the stock intake, a complex, convoluted contraption of pipes and baffles that keep the ...

The demands on modern engine-cooling systems are complex. Although increased performance, reduced fuel consumption, longer durability and cleaner emissions may appear to be at odds with each other, ...

Your vehicle’s cooling system is more than just a radiator, water pump, thermostat, fan, and coolant. Well, OK, it is exactly that, but there is a lot more to an effective cooling system than just the ...

Intakes are vital automobile components that work to bring oxygen – a key ingredient in an internal combustion reaction – into the engine’s combustion chamber to modulate how much oxygen mixes with ...

Diesel engines typically have beefier, more robust cooling components to keep the motor cool in varying conditions. Modern diesels operate at a higher compression ratio, which makes their combustion ...

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 ...

In most tests on engines up to 6,500 rpm, a modern high-rise dual-plane intake like this Chevrolet Performance example on a Chevy 350 generates the best overall average torque and power numbers ...