lfeatherExplorerJul 30, 2013MufflerI'm trying to locate a replacement muffler for my 2003 Allure 30856 with a Cummins ISL 370. The one on it now is a Donaldson part # M120566 with a 4" side inlet and a 5" end-outlet at the 9:00 o’clo...Show More
ScottGNomadJul 30, 2013Don't straight pipe it. It will sound hideous and the noise and drone will be unbearable IMHO.
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