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SLP Loudmouth Axle-Back Exhaust (11-14 Mustang GT; 11-12 Mustang GT500)

Item 23042
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Ship to: Ashburn - 20149
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      Video Review & Installation

      Hey what’s up everyone I’m Justin from, and I’m bringing you SLP’s loudmouth axle-back exhaust, for your 2011 and up GT Mustang. This loudmouth system eliminates the restrictive factory mufflers, which allows for more horsepower, it also makes for one mean exhaust note as well. The system is constructed from 3 inch mandrel bent stainless steel tubing, exiting through hand polished 4 inch tips, which result in a very clean finish. Simple bolt on installation, should only take you about an hour. Let’s hear how SLP’s loudmouth axle-back compares to your factory exhaust.

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation

      Features & Specs

      • Rich, Throaty Exhaust Sound
      • Muffler Delete
      • 2.5" Mandrel-Bent 409 Stainless Steel Tubing
      • 4" Polished 304 Stainless Steel Tips
      • Emissions Legal in All 50 States
      • Fits 2011-2014 GT and GT500 Mustangs


      Aggressive Throaty Exhaust Note. This SLP Performance Parts Axle-Back kit eliminates the restrictive stock mufflers from the 2011-2014 GT or GT500, drastically reducing back pressure to enhance power and to produce one of the most aggressive exhaust notes possible with the factory catalytic converters still installed. 409 Stainless Steel. SLP's Loud Mouth axle-back system is made from 2.5" mandrel-bent 409 stainless steel tubing, which has excellent flow characteristics and features pre-welded hangers for simple installation. The hand polished, 4" dual wall tips give a show quality muscle car appearance to the rear of your Pony. Application. Made as a direct bolt on, this SLP Loudmouth Axle-Back bolts right up in the stock location without any modifications required on the 2011-2014 GT or GT500 Mustangs.

      Technical Note. Americanmuscle recommends adding the 2005+ Mustang 304 Stainless Steel Exhaust Hanger Kit from the drop down option above, to provide more strength, stability and a cleaner installed appearance. If you have a 2007 Mustang you may need the kit for correct installation.



      SLP M31023

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      Hardware included:Hardware Included
      • (2) Clamps


      Customer Reviews (500+)

        Questions & Answers

        10 More Questions

        Will It Fit My Mustang

        • Boss 302 - 12, 13
        • GT - 11, 12, 13, 14
        • GT500 - 11, 12, 13, 14

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