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2008 honda civics si

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    I.C.E., Electrical, Security, & Navigation
  2. Exhaust Discussion
    Only my 2nd post here, I really want to do a cat back exhaust but im worried about the car running rough after a year or so. I have heard that because the car coming from the factory is set up for certain air flow and such that it will make the car run rough. Is it a good idea to get the car...