opinions wanted for best cold air kit for my 06 sierra only mods are flowmaster and as soon as cold air kit is on i will call nelsons back. I have k&n on everything else I know but some people say you pay extra for the name. any just as good for less money out there. also always looking for a nice fiberglass rear cover white or black. have a vinyl graphics buddy going to desing me up some nice stripes soon. thank you. Allen