Folks. Help. I bought two boxes of Denso Iridium Power plugs which are recommended for the TRD FJ that state 0.4 MM on the box. Checked the gap and its 0.28"!!! I thought the proper gap was supposed to be between 0.39" - 0.43??? Bought part # IKH22 from Pure FJ Cruiser. Also, "07-Tundra" is on the sticker with PTR24-35070. Part #IKH20 is recommended I believe in the standard engine right? Website "said" they're safe to use. What do I do?? Install or swap?