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Review on NGK 4776 BKR7E-E V-Power Spark Plug, 1 Pack by Dee Parson

Revainrating 5 out of 5

Great Plugs: Spark Plugs

I was recommended to use them in my supercharged BMW M Roadster (the company that makes the supercharger) and they work great. Really smoothed out my starting and idling, and also smoothed out the powerband (more predictable). Highly recommended!

Pros
  • Reduces the voltage in the ignition system
Cons
  • Minor problems