For the person who wants the look of a traditional dual exhaust system with all the benefits that a Flowmaster Cat-back exhaust system provides. D.O.R./D.O.S. systems are the perfect choice, and include exit pipes for both dual out rear and dual out side configurations so that you can choose the one that fits your style. Force II systems deliver 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: Dual Rear Same SideExit Style: StraightHeat Shield Attached: NoInlet Diameter: 2.500 in.Inlet Inside Diameter: 2.500 in.Material: Aluminized SteelMuffler Count: 1Muffler Part Number: 525561Muffler Series: Super 50 SeriesOutlet Diameter: 2.500 in.Outlet Outside Diameter: 2.500 in.Single or Dual: DualSound Level: MildSystem Type: Cat BackTail Pipe Diameter: 2.500 in.Tip Diameter: 3.000 in.Tip Quantity: 2Title: Flowmaster 17472 Cat-back System - Dual Rear/Side Exit - Force II - Mild SoundTubing Diameter: 2.500 in.WARNING CA Proposition 65: YesWARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov