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  1. CorkSport 65mm catted downpipe

    2010-13 Mazdaspeed 3 Engine and Performance
    'm looking to get me one of these to attach to my stock exhaust system. Does anyone have one installed? How much volume/deepness did it add? Does anyone have a sound clip or video?
  2. Tax Check...I mean...Group Buy: 2010 MZ3 Single 65mm Exhaust

    2010-2013 Mazda 3 Engine and Performance
    Our dual exhausts have been selling like hotcakes, but we'd love to get the single exit exhausts for our 2.0l customers moving a lot better. Depending on the configuration you choose and the number of people who purchase, you can save up to $65. We're doing a group buy here that drops the...