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  1. smart General Discussion
    The inside of the catalytic converter is made of ceramic material. How to clean it without damaging it?
  2. smart General Discussion
    Hey guys! I am so thrilled to talk about this after talking with Boris on facebook on their Smart Madness page. Not much has been released about this product, but I think this is the way to go if you want a set of headers but don't want to loose the cat for emissions reasons and violation...
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