Description
Flowmaster 50 Series Heavy Duty 3.5" Inlet 3.5" Outlet Offset Chambered Muffler fuel system You will need two harnesses HSK66 12637785 12637788 You will need two harnesses to power a 40" or 50" bar 2009 2015 Chevy Silverado 1500 XFE 5 Improved Horsepower moderate tone with minimal resonance