Universal 35 Series Stainless Steel Round Stock Straight Necked Glasspack Gray Exhaust Muffler (A3516S) by Jones Exhaust. Muffler Inlet Diameter: 2". Muffler Outlet Diameter: 2". Muffler Body Length: 16". Muffler Overall Length: 21". Muffler Sound: Moderate. Muffler Configuration: Center - Center.