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Review on ACDelco 9444K Professional Spark Plug by Matt Alradwan

Revainrating 2 out of 5

Worst Spark Plug Ever

This spark plug was a terrible purchase... After installing it in my car, I noticed no improvements in performance and the engine was still struggling. Over time i started to experience MISFIRES and eventually had to replace the plug again. The only positive was that it was easy to install. The negative impact it had on my car`s performance outweighed that one good point..

Pros
  • Easy to install.
Cons
  • No improvements in performance, misfires, had to replace again.