I have two boxes (8 spark plugs) og NGK Laser Platinum Premium spark plugs! Part number is PLFR5A-11 6240 I bought these for $90 from auto zone thinking I would change them myself. I jsut sold my truck and never installed them. They are already guaged perfectly for the titan! Just trying to get some money for them. Im selling both boxes (8 spark plugs) for $60! I will pay the shipping and handling anywhere in the continental US. Thanks guys! Email me at [email protected] or get back to me on here.