I HAVE THE 2.7 ALSO, AND IT LOOKS LIKE I HAVE THE WRONG ONES AGAIN, OH WELL. IM DRIVING TO TENN. THIS WEEKEND AND ILL CHECK AND SEE WHAT THEY LOOK LIKE BEFORE I GO.

If it runds better why change iot? Maybe I'll swith to the dull plugs. Maybe someone can tell us if it will harm anything.
My owners manual just calls for the reguler plugs for the 2.7L and that's why i used them. It does show the dull for the 6 cyl i mentioned above.
Let me know what you find out if you have the time. Are you getting any more power from the dull plugs??? Thanks, Mike

2001 Toyota Tacoma 4x4 SR5 auto trans, ext cab,16" Good Year Tracker tires and 2.7 4 cyl. Love it!!
Mobil 1 5w30. Valvoline 75-90 syn in front and back differential ."Keep the shiny side up and your trash out of my woods!"