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The stainless-steel Supersprint rear muffler is a direct bolt-on from the factory muffler and weighs 33.5 lb (versus 45 lb for the stock muffler). The neat thing about this muffler is it retains the same factory installation points with its hangers, and it has connectors for the factory heat shield to be installed with it as well.
Project BMW M3 Part 6: Cams, header and pulleys

 The stainless-steel Supersprint rear muffler is a direct bolt-on from the factory muffler and weighs 33.5 lb (versus 45 lb for the stock muffler). The neat thing about this muffler is it retains the same factory installation points with its hangers, and it has connectors for the factory heat shield to be installed with it as well.  View Related Article

 

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