akyakapotter Posted February 19, 2012 Share Posted February 19, 2012 Whst the deal with these just got some heat range 7's to fit what the bennifets over normal spark plugs cheers nick Quote Link to post Share on other sites
conz1 Posted February 19, 2012 Share Posted February 19, 2012 (edited) Someone correct me if I'm wrong, but as there a colder plug they resist/work better when hot compared to the normal ones. Edited February 19, 2012 by conz1 Quote Link to post Share on other sites
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