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spark plugs

  1. Challenger Issues & Problems
    I just bought this cherry 2009 SRT8 and a couple days after bringing it home I get a check engine light, rough idle, etc. Pull the code and its a Multi Cylinder misfire. Dealership won't touch the car because it's "modified" but sold me a 100,000 warrantee..?. . . After letting them scratch...
  2. General Challenger Discussion
    hi, I have a brand new 2014 Challenger RT, 5.7 L Hemi. What are THE best spark plugs to go with? Or, should I just leave it as is? thanks AJ