MagnaFlow 14156 Exhaust Muffler Stainless steel construction All mufflers are engineered with a wide open performance design Developed using our signature deep tone sound Made in U.S.A. Muffler Body Length 6", Muffler Overall Length 12", Muffler Inlet Diameter/Muffler Outlet Diameter2.5" / 2.5", 4 inch core