SLP Loudmouth II Catback Exhaust (99-04 GT, Mach 1)

SLP Loudmouth II Catback Exhaust (99-04 GT, Mach 1)
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OUR PRICE$517.99
SLP Mustang Exhaust Kits
Item # 23017
Market Price $559.99You Save 8% ($42.00)
Ships the same business day

Product Features

  • Rich, throaty exhaust tone
  • Loudmouth II "bullet-type" race mufflers included
  • Versatile modular design
  • 2.5" 409 stainless steel tubing
  • 3.5" polished 304 stainless steel tips
  • Fits 1999-2004 GT, Bullitt, & Mach 1 Mustangs
More Power and Sound. This SLP system includes SLP's famous Loudmouth II "Bullet Style" race mufflers for minimal restriction, increased horsepower and an aggressive tone, that are only second to the Loudmouth "shotgun" race resonators for sound.

Modular Design. SLP's unique modular design allows you to quickly and easily switch out the mufflers or resonators to suit your driving needs. Along with the included bullet mufflers, the Loud Mouth II system is compatible with all SLP mufflers and resonators including the shotgun style Loud Mouth Resonators and the traditional-style PowerFlo Muffler.


Superior SLP Construction. This SLP Catback system is made from mandrel bent 2.5" 409 stainless steel tubing for its excellent non-restrictive flow characteristics and long life. The system ends with a brightly polished 304 stainless steel 3.5" tips, that are electro-marked with the distinctive SLP logo, giving a great finishing touch and a show quality look.

Application. Designed to be a direct bolt on, this SLP Loudmouth II catback will bolt straight up to the factory Mid-Pipe without any extra modifications required on the 1999-2004 GT, 2001 Bullitt, or 2003-2004 Mach 1 Mustang to give it a rich, throaty sound.
Catback Exhaust Specifications
Piping Material: 409 Stainless Steel Tip Material : Polished 304 Stainless Steel
Piping Size: 2.5" Tip Size: 3.5"
Muffler Type: Straight-through Fitment: 1999-2004 GT / Mach 1 / Bullitt Mustangs

Installation Time:

(approx) 2 Hours

Difficulty Level:

Advanced mechanical skills required.

What's in the box?

Hardware included:
  • (8) exhaust system band clamps

What's in the box?

Hardware included:
  • (8) exhaust system band clamps
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Fitment:
  • GT 99, 00, 01, 02, 03, 04
  • Mach 1 03, 04
  • Bullitt 01
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Known Exceptions:
Fits GT, Mach 1, and Bullitt

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 exhaust systems, performance-optimized programmers, custom-fitted brake-control packages, and high out-put superchargers. Appearance accessories include a universal hood scoop, rear quarter window louvers, and a rear black-out tail light panel. Best known for their Loud Mouth, Loud Mouth II and powerFlo Exhaust Systems, each system boosts its own unique tone and flow characteristics providing superior performance, bolt-on installation, and all backed by their limited lifetime warranty.

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