I see 2 different listings for the NGK spark plugs per Slant6Dan's link.
One is NGK 3459 and the other is NGK 7917, both of these refer to NGK # ZFR5N, per the link. Can anyone out there help me choose the correct one for street driving, and is there a difference? These both come up in the Rock auto part search mode, for ZFR5N.