I‘ve heard that Air Intakes imrove gas milage is this true? If so what type of intake will get you the best milage pop charger / hybrid / cold air?
No it is going to shrink your mileage. as quickly as you have a cold air intake, which capacity the combusting air is colder, and denser. no count if that's denser then there is extra o2 in there, and your pc will make up for that via capacity of upping the gas it shoots in. you're able to journey rather extra capacity, and particular you will lose an mpg or 2.
i had put a KN cold air inductor on my first car and it added about another 25-30 miles per tank
In most cases this is false, sorry. Aftermarket or, so called, performance intakes, are usually designed to flow more air and in doing so burn more gas. They can give you more HP, but rarely does that combination lead to better mileage. While the increased flow of air could lead to leaner burning (and thereby more efficient combustion, better MPG) the fuel injection system on most cars keeps the mixture where it wants it. Your engine can only take in as much air as the valve openings and cylinder volume allow anyway. On some vehicles (due to poor designs, etc) the cold air intakes can be benificial, but again only marginally so, because of the fuel injection computer.
