Has any one replaced the factory air filter with a high flow aftermarket like a K&N and seen increased MPG? I was considering buying one for my truck. I would want to get the style that goes in the factory air box, not the cold air intake style that replaces the factory air box.
If so what...
I jus got my EcoDiesel Laramie 2wd yesterday. I live in okc. I purchased from Nyle Maxwell of Taylor Texas. They are close to Austin. I did this because they give me the best deal. I got a Laramie for right at 40,500 including doc fees and paying 400 extra to have them meet me in...