I have a 2009 G37 Journey sedan. It is my understanding that the engine requires TWO air filters. I have seen some favorable reviews of the K&N air filers on this forum. eBay offers K&N filters, but the ads seem to offer only ONE air filter for $40 - $50 apiece plus shipping. Is it correct to assume that I would have to purchase
two of these air filters for a cost of over $100? The ebay ads do not specify if the purchase is for one or two filters. If for only one, the price is rather steep. If for the set of two, then it is reasonable.
OEM air filters here at the Albuquerque dealership run about $25 apiece. Are the K&N filters really worth the extra cash? Dealer said that these air filters had to be oiled prior to installation. True?