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Review on E3 Spark Plugs E3.66 High-Performance Automotive Spark Plug, Single Pack by Jay Buford

Revainrating 5 out of 5

Best Value Spark Plugs ‼

I used Champion spark plugs on my Harley and they failed within a month. I switched to E-3 spark plugs and haven't had to change them for 3 years in a row. Now I have them in my Chevy Z-71 4X4 and I can feel the difference in performance.

Pros
  • Perfect for outdoor activities
Cons
  • Requires outlet