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2011-2014 Mustang GT/Boss 302/GT 500 LoudMouth Axle Back Exhaust

Free Shipping Price: $499.99 (USD)
Part #: M31023
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 LoudMouth® Rear-Axle Back Exhaust System. 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!

LoudMouth Axle-Back Exhaust System Features:
  • Mandrel-bent 2.5" 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

WARNING: Cancer and Reproductive Harm -
  • Mustang GT - 2011, 2012, 2013, 2014
  • Mustang GT500 - 2011, 2012
  • Mustang Boss 302 - 2012, 2013
  • Install Hours: 2
  • Tools: Shop Tools
  • Install Difficulty: Intermediate

SLP M31023 Loud Mouth Exhaust Instructions