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Old 10-12-2010, 10:53 AM   #1
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Champion spark plugs

I got a tune up kit that came with these plugs but I've been told that these spark plugs suck. What do you guys think?

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Old 10-12-2010, 07:34 PM   #2
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I think it depends what plugs they are. I hear that the 4.0 runs best with Champion truck plugs because that's what they came with from the factory. I'm running Bosch plugs and I'm having no problems. Try them out.

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Old 10-12-2010, 07:38 PM   #3
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Nothing wrong with Champions, I used to run them in a nitrous fed 11 second Mustang.
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Old 10-12-2010, 10:09 PM   #4
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The last mechanic I talked to strongly recommended champion plugs for jeeps.
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Old 10-13-2010, 01:15 AM   #5
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E3's with a diamond fire pattern work much better than my old champion plugs.
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Old 10-13-2010, 08:55 AM   #6
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Quote:
Originally Posted by McKay
E3's with a diamond fire pattern work much better than my old champion plugs.
Really?? I was so close to getting them I heard the really boosted performance. But for like 6 bucks a plug I didn't know if it was worth it

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