What is the best spark plug for my XJR ?
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Join Date: Oct 2009
Location: Perth Ontario Canada
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I'm looking for the best performance 1/4 mile wise.
I have the NGK iridium in my wifes XJ8 with no issues.
I was curious if there were things people liked better...
I see Eurotoys sells the densos.
Last edited by WaterDragon; 07-01-2012 at 02:11 PM.
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I use these in my XJR they made half a horsepower on the dyno been using them for years now here in Australia they are called Brisk in the US they call them Nology I use the silver ones very happy they lasted for years in my Benz Nology Silver Spark Plugs for direct fire ignitions
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