Make sure you put the K&N sticker on the filter box so the tech's at the dealership don't remove it during a service and discard it....Ordered a K&N drop in at Pep Boys today ( they had a flier in our newspaper with $10 off) I will give an update as to how it goes( Takes 3 to 5 days) any advice from those that put a drop in in? :thk: