Hey Guys, I am interested in purchasing some Denso Iridium spark plugs for my 2005 Mazda 3s SP23 (2.3L). But I am not sure which is the better or correct plug since there are two listed for my car. One is the Denso TT Iridum (#IT16TT) or Denso Iridium Power (#IT16). Does anyone know the difference or which plug is better for my car? Thanks!!
