spark plug ?
05-06-2009, 05:10 PM
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Re: spark plug ?
Don't use iridium unless you need to run a 8 or colder heat range and your ems requires a resistor type plug. The ngk coppers are a better performing plug, but any heatrange colder than 7 in them is non resistor and can make some ems act buggy. The iridium's just last longer, but cost way more!
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