| The use of iridium alloy dramatically increases ignition performance, creating much more complete combustion and resulting in both increased power and response which helps to realise the full potential of the engine.
* Available in 6/7/8 heat ranges.
* These are the only spark plugs available in Australia with these heat ranges.
Vehicle | Part No. | Silvia, 180SX, Micra (K11), Pulsar, Bluebird, Skyline (R32, R33, R34), 350Z (Z32), Cefiro, Laurel, Cedric, Stagea (WC34), Serena (C23), Terrano | 22401-RN010-6/7/8 | | Micra (K12), Skyline (V35, CPV35), 350Z (Z33), Murano, Stagea (M35) Serena (C24), X-trail | 22401-RN020-06/07 | | 
