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    DynoMax’s new stainless single side steel cat-back system (part # 39508) fits extended cab short bed and crew cab short bed 2011-15 Ford F-150 3.5L V6/5.0L V8 models.  The new system improves horsepower by 16 and adds 19-ft. lbs. of torque.  Comes with a buffed and polished 4-inch outlet, single wall, buffed and polished 12-inch slant cut tip and 3-inch mandrel bent, stainless steel piping.   It exits behind the right rear tire, side. 
    DynoMax® Ultra Flo™ Welded performance stainless steel muffler feature 100-percent welded construction for lifelong durability. The unrestricted, straight-through design dyno proven to flow up to 2,000 SCFM.  The single muffler uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone.  The 'Pure Unadulterated POWER' of DynoMax® Ultra Flo™ Welded mufflers are backed by a Limited Lifetime Warranty and exclusive 90-Day Performance & Sound Guarantee™.  All Dynomax® Performance Exhaust Systems bolt on for easy installation. Your vehicle's complete exhaust can be quickly and easily customized with an emissions-legal premium performance system from Dynomax®. 
  

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