anyone running the iridium ngk tr7s? good or bad?
Oct 13, 2008 #1 gucci 00BlkLght Established Member Joined Aug 21, 2008 Messages 159 Location st.louis metro anyone running the iridium ngk tr7s? good or bad?
Oct 13, 2008 #2 ChrisNelson * Screw the N.A.B. !! * Established Member Joined Mar 2, 2004 Messages 14,529 Location Tolland, CT Just to help you out, the plug # is TR7IX and the stock # is 3690.