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Old 01-29-2013, 11:27 AM   #4
DarwinSays
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Join Date: Jun 2006
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Location: I75 & M59, MI
What I Drive: 2004 SVT Silver / EAP / CWP

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if you don't mind changing every 10k and additionally don't mind spending more $$ over the course, then the coppers will get you a little better performance.
I've noticed slightly better torque when using them, but that could just be in my motor, how I had them gapped, etc..

for low maintenance and longer durability, E3's are a good choice.

I also noted recently that Ford has once again changed the part/number for the spark plugs on my SVT, not sure if the regular zetecs use the same ones - can't imagine why not.
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