Flowmaster's Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing four-inch case street muffler we've ever built! Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.Automotive Item Grade: High PerformanceBody Height: 4.000 in.Body Length: 13.000 in.Body Width: 9.750 in.Color: BlackFitment: UniversalInlet Connection Type: PipeInlet Diameter: 2.250 in.Inlet Inside Diameter: 2.250 in.Inlet Outside Diameter: 2.250 in.Inlet Position: OffsetInlet Type: Single OffsetMain Piping Diameter: OEMMaterial: Aluminized SteelMount Type: Uses New Hangers (Not Included)Muffler Series: Super 44 SeriesMuffler Type: ReflectionOutlet Connection Type: PipeOutlet Diameter: 2.500 in.Outlet Outside Diameter: 2.250 in.Outlet Position: OffsetOutlet Type: Single Offset OutletOverall Length: 19.000 in.Shape: OvalSound Level: AggressiveTip Quantity: 0Title: Flowmaster 942448 Super 44 Muffler - 2.25 Offset In / 2.25 Offset Out - Aggressive SoundWARNING CA Proposition 65: No