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United States of America, Springfield
1 Level
680 Review
26 Karma

Review on πŸ”₯ Enhance Performance with NGK Iridium IX Spark Plugs TR55IX # 7164 by Greg Hammett

Revainrating 5 out of 5

Excellent plugs. in spares

Installed on my 2006 F150 4.6 2 valve V8 along with MSD BLASTER COILS. Super smooth idle, better pickup and smoother automatic transmission shifts. Just installed so will issue an update if things don't last. Definitely recommended.

Pros
  • Great for me
Cons
  • Useless features