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HD spark plugs no more

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220 views 8 replies 7 participants last post by  CarlosGGodfrog  
#1 ·
2020 softail, changed them in 22, then in 24. These are the plugs, one has failed. I replaced then with Drag Specialties ones.
Do you see anything wrong with them? I could not.
One has an internal break. After 85mpg it started to ping, knock, and loose power.
Replaced the plugs and no more problems.

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The replacements
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Anyone use these? how do they compare with HDs?
 

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