2005-10 Mustang SLP Loudmouth Axle Back GT/GT500 by SLP

2005-10 Mustang SLP Loudmouth Axle Back GT/GT500
2005-10 Mustang SLP Loudmouth Axle Back GT/GT500
2005-10 Mustang SLP Loudmouth Axle Back GT/GT500
2005-10 Mustang SLP Loudmouth Axle Back GT/GT500
Mustang SLP Loudmouth Axle Back Exhaust

If you want your 05-10 Mustang to get noticed for the exhaust tone then the SLP Loudmouth Axle Back is the system for you!

Item #SLP-M31014
MPN# M31014

Everyday Low Price: $439.99

Low Stock Only 2 available. Ships tomorrow!
This item is not eligible for discounts or coupon codes.
 This item is returnable. Details

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Made in the USA


  • Improve power & torque
  • Good Looks
  • Limited Lifetime Warranty
  • Loud Aggresive Tone
  • 50 State Legal


  • 3.5" Polished Tips
  • No Mufflers
  • 304 Stainless Construction
  • Fits 2005-10 4.6L V8 GT Mustang or 2007-10 Shelby GT500

 What's in the Box

  • (2) SLP Loudmouth Muffler Deletes
  • (2) Clamps
  • (1) Instructions

Your 2005-10 GT / 2007-10 GT500 packs a 300-horse thoroughbred of an engine. Why bottle it up with restrictive, wimpy-sounding stock mufflers? Unleash the stallion within, with a Loud Mouth™ rear-section 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!

Mandrel-bent 2.5" tubing offers unbeatable flow characteristics
Significantly lighter than the OEM muffler assembly
Installs in under 30 minutes
Constructed entirely from 304 stainless steel
Hand-polished, 3.5" 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

SLP Exhaust Warranty - Click Here

  • Ford Mustang - 2005, 2006, 2007, 2008, 2009, 2010
  • Sub Models: GT, GT500

Mustang SLP Loudmouth Axle Back Exhaust

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

California Residents:
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About This Brand

SLP - Packaged Performance, Guaranteed Horsepower
SLP's Loudmouth exhaust is one of the most recognized systems on the market! They strive to offer the highest quality aftermarket components for Latemodel Mustangs! Their high quality exhaust components increase power, performance, and give your Mustang a louder exhaust tone for that true American muscle car sound. Choose from a variety of cat back, axle back, and resonator kits for your Mustang at
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