NGK Iridium spark Plugs.. anyone using them?

[klrman]

Is it all marketing or has anyone noticed a real difference, other than the 300% price markup over stock plugs, when using the NGK Iridium spark plugs? and what gap do you run on those plugs? I heard because the spark is stronger you can run wider gaps and burn better, but would like feedback on any success or issues with them.

 

[Guest]

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Put them into my R1 and didn't notice any difference.

 

[evil69]

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I put one in the kids KDX 200 2 stoke it did run better but the shape the old plug was in anything would have been better!

Also got mine for $7.50 as my nephew works at the parts store I bought it from!

 

[klrman]

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Thanks! I thought it might me just marketing. In the meantime I talked to the Yamaha and Kawa dealers as well this morning and they say they never noticed any gain whatsoever either by using them except it makes the wallet lighter!