1999-2004 Mustang GT/Mach 1 LoudMouth Exhaust System

Price: $519.95 (USD)
Part #: M31007
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The Mustang LoudMouth® has always been the best performing cat-back exhaust in the business. Now it's the most versatile, too! Using groundbreaking modular technology first seen on our Mustang X-pipes, we've 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, re-tighten, and you're done. No other system offers this level of performance and adaptability!

Along with the included resonators, the Mustang LoudMouth system is compatible with two all new SLP mufflers, the bullet-type race unit (#31064) and the traditional-style PowerFlo® (#31065). Buy all three for complete control over your Mustang's sound and performance characteristics.

NOTES: Includes SLP resonators. SLP and PowerFlo mufflers sold separately.

FEATURES:
  • Includes our SLP resonators for virtually zero flow restriction and the meanest sound around
  • Employs LoudMouth's exclusive modular technology, making it possible to switch between muffler and resonator types in a matter of minutes
  • Dyno-proven to out-perform competitive resonator-type exhausts
  • Engineered and built to OEM standards to ensure proper fit
  • Constructed entirely from mandrel-bent stainless steel
  • Features show quality polished resonators and 3.5" double-wall tips with elektromarked SLP logo
  • For 1999-2004 GT and Mach I models
Fitments:
  • Mustang GT, Mach 1 - 1999, 2000, 2001, 2002, 2003, 2004
  • Install Hours: 1.5
  • Tools: Shop Tools
  • Install Difficulty: Intermediate

SLP M31007 Loud Mouth Exhaust Instructions