I was going through my old race stuff and came across a couple boxes of brand new spark plugs can't remember if they where for my Rx7 or Rx8. They are NGK T813J-N13 I have 6 of these
link:
NGK Spark Plugs 2186 T813JN13 SPARK PLUG



and



NGK R6725-11 I have 6 of these as well.
link:
NGK Spark Plugs R6725-11 NGK Racing Spark Plugs


Sold my Rx8 solo car about 2 years ago and Sold my Rx7 solo 2 about 5 years ago.
Not really sure what I want for them so PM me with an offer and how many you want. Buyer Will pay actual shipping. Shipping from the Chicago area.