Some of the guys are starting to use the ngk laser iridium ILZKBR7A8G plugs in their N54's. Might be worth a look as it's a single electrode style for I believe about 10 bucks each.
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2008 135i - MHD/JB4, MS DP's, AMS IC, UI CAI, CDV delete, M3 control arms/Links, RE Toe Link, ECS Trailing Arm, M3 rear SF & Trans bushings, SS brake lines, Michelin PSS.
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