im going with an AEM cuz im getting it cheap and its a large intake. if i wasnt getting a GREAT deal on it id definitely go with Volant. K&N sometimes has issues with oil getting through onto the MAF sensor, because it is a lubricated cone not a dry filter like most of the rest... with that said k&n is a great company that a lot of people use. the metal tubes are not recommended as IAT's will be a little higher than a plastic intake tube will.