I have had my Nox for 8 months now and have racked up over 23,000 trouble free miles; however the only thing that eludes me is going to a parts store to get a new air intake filter. Why is that no one carries them? Do the dealers have the only rights to sell them? I ask at the parts stores and look online only to see the puzzled look on there faces when they say it is not available. The online places will sell you the wrong one or at least the picture is all wrong. I stumbled across a filter for a 2005 Chevy Cobalt 2.2L that looks like same shape and can be had for $10 or so, it's a Fram CA9969. The only other option is a K&N cleanable type but i'm weary of the oils needed that can affect the sensor. What luck have any of you had out there?