Iridium plugs for a SP6 engine.?
Discussion
here they are: http://www.ngkpartfinder.co.uk/car_commercial_extr...
i use iridium by ngk with 0.9mm gap instead of 0.7 as stated by ngk.
i use iridium by ngk with 0.9mm gap instead of 0.7 as stated by ngk.
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