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  1. Greddy Civic Si Exhaust Thread

    Exhausts and Downpipes
    Greddy Exhaust... FYI Greddy Civic Si Exhaust Thread...
  2. help me pick an exhaust or downpipe

    Bolt-Ons and All-Motor
    im already planning for my mods to the car even before i get it. but since im probably going to be putting nitrous on it im thinking of changing the headers at the same time. is it worth that extra money to get some nice 4-2-1 headers?
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