The three chamber design utilizes Flowmaster's patented Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.Warranty Information:Limited LifetimeBody Height: 4.000 in.Body Length: 17.000 in.Body Width: 9.750 in.California Proposition 65 Chemical Name 1: Nickel (metallic)California Proposition 65 Chemical Name 2: Chromium (hexavalent compounds)Color: BlackInlet Diameter: 2.250 in.Inlet Inside Diameter: 2.250 in.Inlet Outside Diameter: 2.250 in.Inlet Position: OffsetInlet Type: Single OffsetMain Piping Diameter: 2.250 in.Material: Stainless SteelMuffler Series: 50 Series Delta FlowOutlet Diameter: 2.500 in.Outlet Outside Diameter: 2.250 in.Outlet Position: CenterOutlet Type: Single Center OutletOverall Length: 23.000 in.Shape: OvalSound Level: ModerateTip Quantity: 0Title: Flowmaster 842451 50 Delta Muffler 409S - 2.25 Offset In / 2.25 Center Out - Moderate SoundWARNING CA Proposition 65: YesWARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov