Your truck’s stock air intake system is designed to be
quiet and cheap to make. Manufacturers know they are leaving some
horsepower and torque on the table, but they have other things to
worry about. Things like the overall longevity of your truck and
all the other parts that work together to tow your big boat to the
lake; or race car to the track; or some villain’s beach house
off its foundation. They don’t judge; they just want your
truck to work when you need it to.
But in the aftermarket the air intake system is considered the
low hanging fruit of upgrades. A cold air intake system is probably
the easiest single upgrade you can do to your truck that increases
power and torque and even fuel economy, all while keeping your
precious engine from being destroyed by dust and road dirt.
They are called “Cold Air Intakes” because they are
designed to pull air from outside the hot under hood areas. They
can pull air through the grill, or through the side fender, or