1986-93 Mustang SLP Loudmouth Cat Back Exhaust System - Stainless Steel LX by SLP

1986-93 Mustang SLP Loudmouth Cat Back Exhaust System  - Stainless Steel LX

SLP's cat back exhaust system is an excellent way to give your 1986-93 Fox Body Mustang an upgrade in performance and sound! Available at!

Item #SLP-M31015
MPN# M31015

Everyday Low Price: $729.99

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  • Ford Mustang - 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993
  • Sub Models: LX
Made in the USA


  • Aggressive Exhaust Tone
  • Increased Horsepower
  • Great Fit


  • Mandrel Bent 409 Stainless Steel Piping
  • Modular Design Makes Muffler Swaps Easy
  • Built To OEM Standards
  • 304 Stainless Tips

 What's in the Box

  • (2) SLP Loudmouth Mufflers With Starter Tubes
  • (2) Tail Pipes
  • (2) 3.5" Polished Stainless Tips
  • All Needed Hardware & Clamps

SLP Loudmouth Cat Back Exhaust System

SLP's Mustang Loud Mouth exhaust system has always been the best-performing cat back exhaust in the business. Now it's available for the 1986-93 Fox-Body Mustangs including 1986 GT's & 1993 Cobra's and most versatile, too! Using groundbreaking modular technology, SLP has developed a system that can be quickly reconfigured to fit changing performance, noise level, and sound quality requirements. Simply loosen a few band clamps, swap muffler types, retighten, and you're done. No other system offers this level of performance and adaptability!

SLP Loud Mouth Resonators

SLP's Loud Mouth™ "Shotgun" resonators offer wide open exhaust flow and race-ready performance with an ultra aggressive sound too match. Standard equipment on SLP Loud Mouth™ exhaust systems, each resonator boasts its own unique tone and flow characteristics. They are constructed from hand-polished stainless steel and embossed with the classic SLP logo.


  • Employs SLP's exclusive modular technology, making it possible to switch between resonator and muffler types in a matter of minutes
  • Includes SLP's infamous Loud Mouth resonators for virtually zero flow restriction and the meanest sound around
  • Features show quality polished resonators and 3.5" double-wall tips with electro marked SLP logo
  • Piping constructed entirely from mandrel-bent 409 stainless steel
  • Dyno-proven to outperform competitive resonator-type exhausts
  • Engineered and built to OEM standards to ensure proper fit
  • Tips Constructed of 304 Stainless Steel


  • Fits 1986-93 Mustang LX
  • Fits 1986 Mustang GT
  • Fits 1993 Mustang Cobra

SLP Exhaust Warranty - Click Here

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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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