Hey guys i have heard of some people actually taking off their OEM air filters and leaving the air filter box on, is this recomended or harmfull to the engine in anyway if running in an area that is not very dusty? Also does anyone know which airfilter from afe is the one for my truck is it the mega cannon? I just want the filter not the complete kit, also if you can give me the part number to the filter i would be most greatfull thank you.