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Hi Bob,
I have to agree with you, pick up/response is much more crisp with these plugs. Whilst power increase may be negligible, the fact that there is an improvement to the running of my bikes, means that these are now the only plugs i use in both of them.
P.S. My Bonnie has Norman Hyde silencers,A.I. removed,
Iridium plugs. runs perfectly, no popping, banging, and still has standard jets.
Regards,
Gerry.
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