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Old 07-24-2008, 06:04 PM   #2 (permalink)
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Join Date: Nov 2007
Location: Central Texas
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Iron Horse (retired) - '97 Iron horse Intrepid

Ninja - '08 Kawasaki 250R
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If your ignition system is in good shape(wires, coils) I don't think a plug will make a noticeable difference in MPG. I've tried self modifed NGK(kind of like the E3 plug) and Halos and have never seen an increase in FE.I alway go back to just the basic NGK and index them.

I think the only difference you'll see between the two is in how long they last.
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