Flowmaster has taken the laminar core of our classic HP-2 muffler and wrapped it in a new compact square case. The new Super HP-2 Series muffler offers the same great performance benefits and moderate tone that you would expect from our laminar flow mufflers, now in a new sleek styling. These mufflers are available in either a 409S stainless steel case or a polishable 304S stainless steel case and in sizes ranging from 2.00 in., 2.25 in. and 2.50 in. These mufflers are covered by Flowmaster's Lifetime Limited Warranty.Warranty Information:Limited LifetimeBody Height: 4.000 in.Body Length: 12.000 in.Body Width: 5.000 in.California Proposition 65 Chemical Name 1: Nickel (metallic)California Proposition 65 Chemical Name 2: Chromium (hexavalent compounds)Inlet Diameter: 2.250 in.Inlet Inside Diameter: 2.000 in.Inlet Outside Diameter: 2.250 in.Inlet Position: CenterInlet Type: Single CenterMain Piping Diameter: OEMMaterial: Stainless SteelMuffler Series: HP-2 SeriesOutlet Diameter: 2.500 in.Outlet Outside Diameter: 2.000 in.Outlet Position: CenterOutlet Type: Single Center OutletOverall Length: 12.000 in.Shape: OvalSound Level: AggressiveTip Quantity: 0Title: Flowmaster 12412409 Super HP-2 Muffler 409S - 2.25 Center In./2.25 Center Out - Aggressive SoundWARNING CA Proposition 65: YesWARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov