Craigslist Posted February 23, 2010 Report Share Posted February 23, 2010 i have a 2009 pro circuit t-4 exuast for a yzf250. is used but still in great condition. Pipe was sent straight from pro circuits race shop. have factory insides in the muffler to increase horsepower and pass supercross, and arenacross sound testing requirments. This isnt your ordinary pro circuit exuast, you can buy this in stores. pipe was used for 2009 ama arenacross, and ama supercross and never had trouble passing sound requirements. put on bike and go. instint horspower. if interested email me. thanksMore... Quote Link to comment Share on other sites More sharing options...
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