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gt mufflers

  1. 2005-2010 Mustang Talk
    Hey I found these Shelby GT500 mufflers on ebay for $35 plus shipping and handling. I was wondering if they were really much different than stock GT mufflers, as in loudness and how deep they sounded. MUSTANG SHELBY GT500 MUFFLERS DUAL EXHAUST OEM RAT ROD :eBay Motors (item 200326511206 end...
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