•Brand New •SLP Performance Part # M31023 •Fits 2011-2014 Mustang GT & 2012-2013 Boss 302 •Mandrel-bent 3" tubing offers unbeatable flow characteristics •Significantly lighter than the OEM muffler assembly •Installs in under an hour •Constructed entirely from stainless steel •Hand-polished, 4" dual-wall tips provide a show-quality appearance •Emissions legal in all 50 states •Includes pre-welded hangers, detailed instructions, and all necessary installation hardware •Covered by SLP's Performance Guarantee and limited lifetime warranty •Made in the USA! Your 2011-2014 Mustang GT 5.0, 2012-2013 Boss 302, and 2011-2012 Shelby GT500 packs a thoroughbred of an engine, why bottle it up with restrictive, wimpy-sounding stock mufflers? Unleash the Pony within, with a Loud Mouth® Rear-Axle Back Exhaust System from SLP Performance Parts. This affordable, easy-to-install kit eliminates the factory mufflers entirely, drastically reducing backpressure for enhanced power and a mind-blowing performance sound. Nothing else even comes close! Combined with our 4" polished tips, you'll really feel and hear the difference! Click here for video!