This jetta is my first car - had it for a few years and wouldnt trade it for a damn ferrari. Im wanting to upgrade as much as i can - for now just with bolt on stuff.... anyways - i think im going to first add on a Cold Air Intake and was wondering about the performance difference in the different brands from spyder to K&N - there is about a $200 price difference, but is there that much of an effect if its just basically a tube with a filter on the end? Don't want to pay out my ass just for a brand name... thanks ya'll