SLP Loud Mouth Exhaust for 2005-2010 Mustang GT

SLP Loud Mouth Exhaust for 2005-2010 Mustang GT

Item Code: FM5003

Low Price Guarantee!
Ships 3-5 business days after you order.


Product Description

Your GT packs a 300-horsepower 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


  • 2005-2010 Ford Mustang GT and GT500

Installation Difficulty

Installation Difficulty 3 View Installation Instructions


Average Customer Review 5 out of 55 out of 55 out of 55 out of 55 out of 5 () 1 Reviews
Write a review and share your thoughts with others.
5 out of 55 out of 55 out of 55 out of 55 out of 5 SLP Loudmouth... sounds like a real Mustang now!, 3.15.2007
Reviewer: Chris S (Evansville, IN)
I am very pleased with this buy. The tips look great on my car, and the sound is EXCELLENT! I couldn't be happier. If you ride it easy, it's got a subtle growl. If you hit it hard... well, buy it and find out for yourself. Just a note, there's resonant frequency between about 1900 and 2200 RPM.