The Super 40 features Flowmaster's Delta Flow technology. It's larger case profile provides the best of both worlds of performance and sound. The Super 40 has that deep powerful sound of the Original 40 series but with all the benefits of performance and low interior resonance from the Delta Flow technology. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.Warranty Information:Limited LifetimeAutomotive Item Grade: High PerformanceBody Height: 5.000 in.Body Length: 13.500 in.Body Width: 10.000 in.California Proposition 65 Chemical Name 1: Nickel (metallic)California Proposition 65 Chemical Name 2: Chromium (hexavalent compounds)Color: BlackFitment: UniversalInlet Connection Type: PipeInlet Diameter: 3.000 in.Inlet Inside Diameter: 3.000 in.Inlet Outside Diameter: 3.000 in.Inlet Position: CenterInlet Type: Single CenterMain Piping Diameter: 3.000 in.Material: Stainless SteelMount Type: Uses New Hangers (Not Included)Muffler Series: Super 40 SeriesMuffler Type: ReflectionOutlet Connection Type: PipeOutlet Diameter: 2.500 in.Outlet Outside Diameter: 2.500 in.Outlet Position: DualOutlet Type: Dual OutletOverall Length: 19.500 in.Shape: OvalSound Level: AggressiveTip Quantity: 0Title: Flowmaster 8530452 Super 40 Muffler 409S - 3.00 Center In / 2.50 Dual Out - Aggressive SoundWARNING CA Proposition 65: YesWARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov