well i ordered one about 2 months ago ... i just recently took it off ..... i put the stock intake back on ... the reason is because , the piece of rubber that connects from the throttle body to the metal elbow , there was very bad dust build up on the inside , that dust was getting in my engine and messing with my idle and mass air flow sensor .
I would recommend that you get a better filter or get one of those foam cover thingys for the filter .
Now that i have the stock intake back on , it has more torque than it did with the hps intake ....in my opinion
It also idles way smoother ... but i will put it back on at a later time when i get a better filter and a foam cover for the filter , but wont be anytime soon
i have the outerwear ones, and they are great. im sure k/n makes great ones too. either one u should be good to go. they breathe well...literally. when i got mine, i took breaths thru it just to be sure.