Injen CAI filter question

[deejayspinz]

I am getting an Injen CAI (currently on its way to me) and wanted to know if anyone has replaced the stock filter with a K&N? If so, what is the part number for the K&N filter? Or, what is the diamater of the outlet (so I can order the right K&N).

[twilightprotege]

dont worry about it. the injen filter probably uses k&n elements just like many similar filters. save your $$$