State University of New York Institute of Technology
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During a recent experiment i removed the the catalytic converter, the resonater, and muffler, after that I welded up a free flow three inch exhaust. These modifications were made to a 2002 audi tt upon making these modifications responsiveness and power...
by Michael Posson (possonm) at Tuesday, May 1, 2012 7:49am 1 comment

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