For the person who wants a subtle custom appearance with all the benefits that a Flowmaster Cat-back exhaust system provides. S.O.S. (Single out side) systems are the perfect choice. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.California Proposition 65 Chemical Name 1: Nickel (metallic)California Proposition 65 Chemical Name 2: Chromium (hexavalent compounds)Exhaust Series: American ThunderExhaust Type: SingleExit Position: Single SideExit Style: StraightHeat Shield Attached: NoInlet Diameter: 2.750 in.Inlet Inside Diameter: N/AInlet Position: DualMaterial: Aluminized SteelMuffler Count: 1Muffler Part Number: Kit OnlyMuffler Series: 50 Series Big BlockOutlet Diameter: 3.000 in.Outlet Outside Diameter: 3.000 in.Single or Dual: SingleSound Level: ModerateSystem Type: Cat BackTail Pipe Diameter: 3.000 in.Tip Diameter: N/ATip Quantity: 0Title: Flowmaster 17224 Cat-back System - Single Side Exit - American Thunder - Moderate SoundTubing Diameter: 3.000 in.WARNING CA Proposition 65: YesWARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov