Cold air intakes are usually placed in the fender well area, which brings in a cooler charged air from beneath the car (outside of the engine bay), which is denser and therefore creates more power.
cold air intake
Cold air intake, supercharger and down pipes.
cold air intake, K & N airfilter dual exhaust
From 5 to 10 horsepower.
Cut off catalyic converter and add a cold air intake system.also improves mpg
To increase the horsepower of a diesel engine you need to put either a turbo charger or a supercharger on it. Cold air intake will also help.
A cold air intake will increase your horse power
it all depends on the motor but on my 2007 ford powerstroke diesel v-8 it added a 25 horsepower increase with a k&n cold air set for around $228
The cold air intake may add 5-10 hp to the 335 it was built with.
A cold air intake would take in all surrounding air and it would increase your horsepower a certain amount. The warm air it takes in would not affect it much.
what year
The main purpose of cold air intake is to increase mileage. As the engine takes in cold air instead of warm, the engine cools down and more energy can be used to run the car instead of having to use up the energy cool it.