Ford Shelby GT500 Track Testing - Shelby Bolt On Bonanza
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One of the keys to the MagnaFlow system's success is the high-flow mufflers that come with the stainless steel, mandrel bent system. Here Lacko pulls out a stock muffler, eventually replacing it with the MagnaFlow piece. The MagnaFlow has the same diameter tubing as the stock system, but its design offers improved sound and flow. View Related Article
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