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Review on πŸ”₯ High-Performance NGK Spark Plugs LTR5IX-11 (Stock # 4344) - 4-Pack for Efficient Ignition by Jason Marquez

Revainrating 5 out of 5

Perfect replacement for my 2010 Mazda 3

I am a big fan of NGK. I had 85,000 miles on my Mazda 3 when I installed them. I know this is not a "direct" OEM replacement, but when I first started the car after installing it, I noticed a very noticeable reduction in idle speed and vibration. The pickup is better, fuel economy has improved, and engine noise seemed a little lower. Gap was pre-installed, there were no problems installing it. Good product!

Pros
  • Easy install
Cons
  • High price