The 70 series utilizes Flowmaster's patented Delta Flow technology and an enlarged case for improved sound control along with mileage and power gains. Perfect for use on trucks, SUV's, RVs, tow vehicles and high performance street cars where space allows. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.Automotive Item Grade: High PerformanceBody Height: 5.000 in.Body Length: 22.000 in.Body Width: 10.000 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: DualInlet Type: DualMain Piping Diameter: 2.250 in.Material: Aluminized SteelMount Type: Uses New Hangers (Not Included)Muffler Series: 70 Series Big BlockMuffler Type: ReflectionOutlet Connection Type: PipeOutlet Diameter: 3.000 in.Outlet Outside Diameter: 3.000 in.Outlet Position: CenterOutlet Type: Single Center OutletOverall Length: 28.000 in.Shape: OvalSound Level: MildTip Quantity: 0Title: Flowmaster 524703 70 Series Muffler - 2.25 Dual In / 3.00 Center Out - Mild SoundWARNING CA Proposition 65: No