Exhaust System KitForce II Axle Back Exhaust SystemForce II Axle Back Exhaust System; Dual; Dual Rear Exit; Incl. 2.25 in. Tubing/60 Series Muffler/4 in. Polished Stainless Tips; 409 Stainless Steel;SPECIFICATIONS:Exhaust Series: Force IIExhaust Type: DualExit Position: Dual RearExit Style: StraightHeat Shield Attached: NoInlet Diameter: 2.250 in.Inlet Inside Diameter: 2.250 in.Material: Stainless SteelMuffler Count: 2Muffler Part Number: Kit OnlyMuffler Series: 60 Series Delta FlowOutlet Diameter: 2.500 in.Outlet Outside Diameter: 2.250 in.Single or Dual: DualSound Level: ModerateSystem Type: Axle BackTail Pipe Diameter: 2.250 in.Tip Diameter: 4.000 in.Tip Quantity: 2Tubing Diameter: 2.250 in.WARNING CA Proposition 65: YesWARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.govFEATURES:Mandrel Bent 16ga 409 Stainless TubingLimited Lifetime WarrantyModerate Exterior Exhaust ToneIncl. Hangers and Hardware For Easy InstallationAxle Back SystemDual Out Rear ExitDyno Tuned for Maximum PerformancePremium Flowmaster QualityWake up the performance and sound hidden in your 3.7L V6-powered 2011-2014 Ford Mustang with a Flowmaster Force II exhaust system. These moderate sounding systems retain the dual exhaust system outlets and are designed to replace the original rear mounted mufflers using factory hangers and connections. With easy fit in mind, these systems are mandrel-bent stainless steel for maximum performance and include specially tuned pair of 60 Series performance mufflers with large 3.50-inch polished stainless steel tips. As a Force II system, it delivers a moderate exterior tone and a mild interior tone and is suited to the enthusiast who wants a subtle but distinctive performance exhaust note. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. The exhaust is a true bolt-on system, includes everything you need to easily install at home with basic hand tools and is covered by our Lifetime Limited Warranty.Flowmaster operates the only exhaust Research & Design facilities of its kind in the world, centered around the SuperFlow SF-7100 engine dynamometer complete with E.C.A. (engine cycle analysis) equipment and also SuperFlow chassis dyno's. Through use of these dyno's, Flowmasters engineering staff can track the complete engine cycle in millionths of a second and can obtain exact technical data of each degree of cam rotation, from induction to the tip of the exhaust system, while also showing the power numbers that really matter, the power numbers to the ground. Flowmaster also utilizes Spectrum Analyzers to fine tune the sound of each of the eleven different series of mufflers that Flowmaster currently offers, both for peak performance and just the right sound levels and tones. Flowmasters product line includes exhaust products for Performance Street, Muscle cars, Trucks, Street Rods, RV's, Motorhomes, and all types of race applications. With over 400 different muffler models, 370+ exhaust systems and numerous exhaust accessories available, Flowmaster offers you the choice of sound to fit your sound preference from wild to mild and of your specific vehicle needs. Call our experienced tech staff for live help and detailed information regarding your vehicles. With Ray still active and hands on with the R&D department in the development, not only of new exhaust products, but also with new technologies currently being tested in third and new R&D facility, the future looks to be very exciting indeed.