1st Gen R53 Cooper S Most liked posts in thread: 110 K. Plug advice

  1. MCS02

    MCS02 Moderator
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    #2 MCS02, Feb 23, 2017
    NGK BKR7EIX These are one step colder than stock. Thats what you need for a 15% pulley
     
  2. Crashton

    Crashton Club Coordinator

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    #3 Crashton, Feb 23, 2017
    I ran oem plugs on my MCS with 15% pulley. Changed them out at 50,000 miles. Change out your spark plug wires too when you do the plugs.
     
  3. Razone23

    Razone23 Active Member

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    #4 Razone23, Feb 23, 2017


    Thank [emoji106]


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  4. Razone23

    Razone23 Active Member

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    #5 Razone23, Feb 23, 2017


    Perfect


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