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Spark plug selection

  • 1998
  • Boxster
Mileage: 
102 000
Electrical and Electronic
New Braunfels, 
Texas

Owner's manual says I should use a Bosch FR 7 LDC4 plugs  in the Boxster. I have checked and called everywhere, even on the web and cannot find that specific plug!

I used a cross reference chart I found on the web and it recommended a NGK Iridium IX 6418. There were several others but this one seemed like the best of the ones recommended and it was the highest priced one as well. I feel "strange" putting a Japanese plug in a Porsche but it is the best one I could find.

Is that the best plug to use? Any suggestions or recommendations would be appreciated.

Thanks!

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