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sparks ngk denso oem

  1. Spark Plugs for 93SS. (Im confused right now:(

    9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
    2006 93 AERO 2.8T V6 bought NGK Iridium IX LFR6AIX-11 6619 I dont have proper skill to change the sparks all by myself, so I went down to local repair shop to ask them to help me on this. they told me the NGK sparks wont fit and they said Denso SK20HR11 3421(charge me $9 for each) is the OEM...