jdub;1230819 said:GC is a specific oil.
For oil filters: Wix, NAPA Gold, or PureOne. I prefer Wix (NAPA Gold is made by Wix) due to the bypass valve design and it is an excellent filter. More info here:
http://www.supramania.com/forums/showthread.php?t=42763
K&N air filters are crap. #1 - they don't filter worth a damn and #2 - the oil can damage the optical sensor on the Karman Vortex AFM found on the 7M-GTE. An AEM DryFlow is a far better choice.
deabionni -
Jdub you info is great on oil but i wonder if you get the same K@N filter we get in Australia ? I've had great results with the k@n in the past before i started using the apexi and I've read many tests that claimed the filter to be no 1 with filtration but not airflow.? I'm guessing no two filters are the same or some have more oil on them during testing. I agree on the afm issue though, oil filters = dirty honeycomb.
here's a test done in Australia if the link still works.
http://www.australianauto.com.au/HTML/Images/Air Filter Shoot Out.pdf