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  1. Flowmaster 2011-2012 Mustang V8 Outlaw Axle Back Kit
    $589.95

     

    Our race-oriented Outlaw systems are designed to replace original rear mounted mufflers located behind the rear axle using factory style connections. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. Outlaw systems deliverance-level, super aggressive interior and exterior tone and are suited to the enthusiast who wants the most aggressive components they can purchase. 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.

    • Mandrel bent 16 gauge 409 stainless tubing
    • Aggressive and powerful exterior exhaust tone
    • Includes hangers and hardware for easy installation
    • Axle back system
    • Dyno tuned for maximum performance

    Installation Instructions

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    • Flowmaster 2013-2014 Mustang 5.0L V8 409S American Thunder Axle Back Kit
      $634.95

       

      American Thunder exhaust systems deliver the aggressive sounds you want, as well as the performance gains you demand. This T409 stainless steel American Thunder Axle-back for the 2013 Mustang GT features specially modified Super 44 Series mufflers with polished 4.00? stainless tips and is a direct bolt on for the restyled Mustang. A Lifetime Limited Warranty provides assurance that this American made exhaust will deliver that famous Flowmaster sound for many years to come.

      • Stainless steel construction
      • Dyno tuned for maximum performance
      • Patented Delta Flow technology
      • Made in the USA
      • Premium Flowmaster quality

      Installation Instructions

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      • Flowmaster 2013-2014 Mustang 5.0L V8 409S Outlaw Axle Back Kit
        $599.95

         

        Outlaw exhaust systems feature the race developed and proven Outlaw mufflers for a very aggressive sound outside the vehicle with a moderate interior sound level. As an Axle-back exhaust, this direct bolt on Outlaw system is easily installed at home and will add the performance improvements you expect from Flowmaster. 4.00? polished stainless tips provide a performance look, while a Lifetime Limited Warranty provides assurance that this American made exhaust will last.

        • Stainless steel construction
        • Dyno tuned for maximum performance
        • Flowmaster's most aggressive system
        • Made in the USA
        • Premium Flowmaster quality

        Installation Instructions

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        • Flowmaster 2011-2012 Mustang V8 American Thunder Axle Back
          $643.95

          Flowmaster 2011-2012 Shelby GT500 American Thunder Axle Back

           

          The Ford 5.0 liter engine is back and delivers an incredible 412 Camaro-smokin' horsepower. To match the factory's re-issue of the famous 5.0 liter nameplate, Flowmaster set about re-engineering their American Thunder exhaust system to deliver that classic 5.0 liter sound along with additional fuel mileage and power. This new Flowmaster American Thunder axle-back exhaust kit for the 2011-2012 Ford Mustang features a pair of stainless steel, specially-built Classic Two Chamber mufflers that provide a very deep and aggressive sound level and is suited to the enthusiast who wants a distinctive and powerful exhaust note. The exhaust system is constructed with mandrel bent 3.00" diameter 409S stainless steel tubing for maximum durability and include 4.00" diameter polished tips with embossed logo that exit through the factory rear valence cutouts. A true bolt-on (Flowmaster engineers pride themselves on creating the best fitting exhaust systems available) exhaust kit that includes everything you need to easily install at home in your driveway using basic hand tools. As with all Flowmaster exhaust products, they are built in the USA and backed by our limited 10-year warranty.

          • Noticeable power and mileage gains.

          • True bolt-on installation.

          • 409S stainless for maximum durability.

          • Polished stainless tips with Flowmaster logo.

          • Great performance sound

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