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    spark plugs necessary with cobb ap?

    ahh I see. That's what I keep hearing. Thanks for the input MSMS3!
  2. D

    spark plugs necessary with cobb ap?

    I've searched around and I have found some answers. However I still have some questions about whether or not it is a necessity to upgrade to 1 step colder plugs if I am going to purchase an AP in the future. I'm currently running a COBB DP, and a CPE CAI. I was going to purchase the AP when I...
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