i used to use the autolite 4164s in my bike. can't say that i ever had any problem with them, but when i bought my 2010, and was researching tuners, jamie at fuelmoto recommended staying with the stock plugs (and not the se) because of the spark knock sensor in our bikes. the ecm looks for a certain resistance value, and aftermarket plugs, may or may not, meet this value. so based on his recommendation, went with the powervision, and stock plugs.
I understand the concept of reality, but find it too confining for a way of life.
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