Flowmaster Super 44 Series Stainless 2.5" Offset Inlet Outlet Universal Muffler 2003 2007 6.0l powerstroke (1) Axle Back Exhaust Pipe HSK66 12637785 12637788 (1) Axle Back Exhaust Pipe and other underperforming products Universal Muffler Some adaptation may be required Noticeable interior resonance
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