When I first got my car back in March of 2009, the first thing I checked was what K&N filter it would take. On thier site it listed the HP-2010 oil filter. Even at work at the Zone we had the 2010 listed as the oil filter. Now K&N has made a change. They now list the HP-1017 filter. Of course we don't stock that one and anytime we have to place an order we don't get anything of a discount for it. Would it still be safe to use the HP2010 filter? we have tons of those and this filter is the same one that my wife's 07 Mustang V6 uses too.