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. Force II systems delivers a moderate exterior tone and moderate to mild interior tone, and are suited to customers looking for efficiency improvements without a lot of noise. Especially recommended for towing applications. 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: Force IIExhaust Type: SingleExit Position: Single SideExit Style: StraightHeat Shield Attached: NoInlet Diameter: 3.000 in.Inlet Inside Diameter: N/AMaterial: Aluminized SteelMuffler Count: 1Muffler Part Number: 53073Muffler Series: 70 Series Big BlockOutlet Diameter: 3.000 in.Outlet Outside Diameter: 3.000 in.Single or Dual: SingleSound Level: MildSystem Type: Cat BackTail Pipe Diameter: 3.000 in.Tip Diameter: N/ATip Quantity: 0Title: Flowmaster 17126 Cat-back System - Single Side Exit - Force II - Mild SoundTubing Diameter: 3.000 in.WARNING CA Proposition 65: YesWARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov