We found the OEM replacement Denso Iridium NGK plug to not pack enough punch for our 1000HP Time Attack Car. Installing these twin electrode copper plugs solved the misfire issues we were seeing at high boost, these plugs are affordably priced to boot.
Feature the M12x1.5 thread of the R32 head, will not fit the 24v head.
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This product was added to our catalog on Thursday 24 September, 2009.
