Vibrant 3" ultra quiet resonator is designed to dampen exhaust noise and facilitate undisrupted exhaust flow. It is constructed from T304 Stainless steel and features a "True Straight Through" perforated core surrounded by sound absorption materials. This highly durable resonator can withstand high exhaust temperature and is Five year limited warranty. Part specifications: Inlet Diameter: 3", Outlet Diameter: 3", Body Width: 6.5" x 4.75", Body Length: 9.75", Overall Length: 13.75".