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Hi I was wondering if anyone upgraded their sparkplugs to the iridium or the E3 sparkplugs. They claim to give more power but I have never actually upgraded. So I am wondering if anyone noticed a difference when they installed the upgraded sparks. thanks for the info
 

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keep with the same ones as stock. they are about as good as it gets
 

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I use iridiums - I'll not be going back to stock. Best part about the iridiums for me is not the power gain (noticeable, but not significantly) but the service life - I've never fouled these plugs. I change annually as a matter of habit, but they are never fouled when I pull them; always good for at least another season. Thus, they maintain power longer than the stock ones.
 
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