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1999-2004 Mustang Cobra LoudMouth Exhaust System

Free Shipping Price: $699.99 (USD)
Part #: M31006
LoudMouth's® Cobra exhaust system 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 Cobra LoudMouth system is compatible with our all-new bullet-type race muffler. Get both for complete control over your Cobra's sound and performance characteristics.

NOTES: Includes SLP resonators. SLP mufflers (P/N 31064) sold separately.

  • Added a consistent 25 rwhp on our stock 2003 Cobra test car (modified vehicles will see considerably larger increases)
  • Employs LoudMouth's exclusive modular technology, making it possible to switch between muffler and resonator types in a matter of minutes
  • Includes our infamous Loud Mouth resonators for minimal flow restriction and the meanest sound around
  • Dyno-proven to outperform 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
  • For 1999-2004 SVT Cobra models

WARNING: Cancer and Reproductive Harm -
  • Mustang Cobra - 1999, 2000, 2001, 2002, 2003, 2004
  • Install Hours: 1.5
  • Tools: Shop Tools
  • Install Difficulty: Intermediate

SLP M31006 Loud Mouth Exhaust Instructions