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Denso Iridium Power or Denso Iridium Tough Spark Plugs?

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  • Denso Iridium Power or Denso Iridium Tough Spark Plugs?

    I have some questions regarding Spark Plugs.

    First considering that the OEM are fine (I think so!), what would I gain/loose from changing them for Denso's? (apart from the cost involved)

    And from Denso's, should I go for Denso Iridium Power or Denso Iridium Tough?

    Best Regards,

    Paulo
    ///M Coupe 2001 S54 Steel Grey - Paulo M.
    -------------------------------------------
    ----- Sporting Clube Portugal - Forever -----

  • #2
    Now sure on the Denso's but im going to put 6 NGK's in mine the code of the right ones is.....
    DCPR8EKP

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    • #3
      Originally posted by z3mcouperacer View Post
      Now sure on the Denso's but im going to put 6 NGK's in mine the code of the right ones is.....
      DCPR8EKP
      Denso's or NGK's, basically I would like to know what I would gain and loose to go from OEM to Aftermarket Spark Plugs and considering that the OEMs are fine (which I think they are)...
      ///M Coupe 2001 S54 Steel Grey - Paulo M.
      -------------------------------------------
      ----- Sporting Clube Portugal - Forever -----

      Comment


      • #4
        As i understand it the NGK's are OEM and are pretty much the best ones you can get anyway.

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        • #5
          i fit the denso iridium power and the car goes better!
          Also my brother whit boxster s had similar improve,also heard same review from an z4m owner.
          www.fastdrive.org
          S50 black/black-red In Rome
          Front BBK Stoptech Red+Eibach Sway Bars+Kw Clubsport Whit Camber plates+Weichers Strutbar+Agk Urethane front Silent Block & differential Bushing+Tuner Motorposrt Alluminium Rear Mount+Hamann Exaust

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          • #6
            It seems the S50 plugs are PKR7A, surprised they use a different plug!

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            • #7
              Originally posted by c_w View Post
              It seems the S50 plugs are PKR7A, surprised they use a different plug!
              Your right Chris///ive just changed mine...bought from ecp....cheaper than the stealers...after reading quite a bit regarding different plugs etc it seems to me that the ngk ones are pretty much spot on !

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              • #8
                Not Densos but I'm on my second set of NGK Iridium IX's.

                Could be placebo but I swear the engine fires up and idles smoother with these babies in.

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                • #9
                  I fitted the same ones Cali..and ime also sure there is a higher level of keeness!

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                  • #10
                    resume the thread
                    After 25,000km and 3 year it's time to change the spark
                    What is the correct number of ngk iridium for s50b32 ?
                    www.fastdrive.org
                    S50 black/black-red In Rome
                    Front BBK Stoptech Red+Eibach Sway Bars+Kw Clubsport Whit Camber plates+Weichers Strutbar+Agk Urethane front Silent Block & differential Bushing+Tuner Motorposrt Alluminium Rear Mount+Hamann Exaust

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