SLP Loudmouth II Mufflers - Pair (79-04 All)

SLP Loudmouth II Mufflers - Pair (79-04 All)

About SLP

SLP Mustang Exhaust Kits
SLP Performance Parts is your #1 Source for late-model Mustang performance and appearance parts. Available products include stainless steel header packages, cross-over x-pipe assemblies, cat-back ...... READ MORE
OUR PRICE$195.99
Market Price $219.99You Save 11% ($24.00)
Item # 23027
Ships the same business day

Product Features

  • Rich, throaty exhaust tone
  • Straight-through design for superior flow
  • Designed for SLP Modular Catbacks
  • 2.5" inlet/outlet diameter
  • 304 Polished Stainless Steel Construction
  • Sold as a set of two
More Power and Sound. SLP's famous Loudmouth II "Bullet Style" race mufflers offer minimal restriction, increased horsepower and an aggressive throaty tone, that is only second to the Loudmouth "shotgun" race resonators for sound.

SLP Modular Design. SLP manufactures their Mustang catback exhaust systems with a unique modular design that allows you to easily and quickly swap out the included mufflers with any of the other SLP mufflers or resonators they make to suit your driving needs.

Superior SLP Construction. The SLP Loud Mouth II "bullet" mufflers are constructed from high hand-polished 304 stainless steel with an embossed SLP logo for great looks, and feature a ceramic-wrapped, perforated core that reduces high-frequency noise and in-car resonance for a rich, throaty exhaust note.

Application. These SLP Loudmouth II Mufflers are designed to easily replace the existing mufflers or resonators in any of SLP's 1979 to 2004 Mustang Catback exhaust systems. The may also be used in the fabrication of custom exhaust systems.
Measurements:
  • 2.5" ID/OD
  • 4.5" body diameter
  • 18-3/16" overall length

Installation Time:

(approx) 2 Hours

Difficulty Level:

Advanced mechanical skills required.

What's in the box?

Hardware included:
  • None - reuses stock hardware

Customer Submitted Installation Guides:

SLP Modular Muffler Installation Guide

What's in the box?

Hardware included:
  • None - reuses stock hardware
checkmark
Fitment:
  • V6 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
  • GT 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
  • Cobra 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
  • Mach 1 03, 04
  • Bullitt 01
  • Foxbody 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93

Customer Reviews

4.824
  • 5/5
    awesome
    April 23, 2010
    brandon
    2002GT
    put these on my 02 gt and they sound great. then i went a step further and put an O/R X-pipe on it and OMG this thing is loud!!! overall a great sounding muffler. thanks AM
    1 of 1 voted this as helpful.Yes, I recommend this product.
  • 5/5
    A Good Value
    December 30, 2010
    YRUNVS
    I bought these as a replacement for a bassani muffler that was taken out by a protruding manhole cover. I had some worries about them being a bit loud for my tastes (LT headers, X-pipe o cats), but that proved to be unfounded. They were not too loud and sound good once I have the car tached up, they sound a bit gruff compared to the bassani at low rpms but not objectionably so.
    3 of 3 voted this as helpful.Yes, I recommend this product.
  • 5/5
    Great sound...
    July 22, 2010
    Aaron
    1980
    At first I purchased the Loudmouth Resonators - after reading some comments, they were returned (very easy with AM) and picked up these...amazing DEEP sound - welded to stock 2.25 pipes ($80)....great way to go if you don't want to spend $400+ for full CAT system...[FYI: if you don't plan on putting on headers and upgraded x/h pipe....buying the full Catback is a waste of $$$ -]
    7 of 8 voted this as helpful.Yes, I recommend this product.