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1987-1993 Mustang LX 5.0 V8 SLP M31015 Loud Mouth 2.5" Cat-Back Exhaust System

1987-1993 Mustang LX 5.0 V8 SLP M31015 Loud Mouth 2.5" Cat-Back Exhaust System

SLP Performance Parts

Part Number: M31015

SKU:EX0110

Regular price $729.99 USD
Regular price $729.99 USD Sale price $729.99 USD
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  • Free Shipping to the Lower 48 States!
•Brand New
•SLP part # M31015
•Fits 1986-1993 Mustang LX & 1993 Mustang Cobra
•Includes our infamous Loud Mouth resonators for virtually zero flow restriction and the meanest sound around
•Employs SLP's exclusive modular technology, making it possible to switch between muffler and resonator types in a matter of minutes
•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 with electromarked SLP logo


SLP's Mustang Loud Mouth® has always been the best-performing cat-back exhaust in the business. Now it's available for the 1986-1993 Fox-Body Mustangs including 1993 Cobra's and most versatile, too! Using groundbreaking modular technology, 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 Loud Mouth system is compatible with our bullet-type Loud Mouth II® Mufflers (#31064) and our traditional style PowerFlo® Mufflers (#31065). They both offer flow and performance similar to our resonators but feature a ceramic-wrapped, perforated core that reduces high-frequency noise and in-car resonance for complete control over your Mustang's sound and performance characteristics.

NOTE: Includes Loud Mouth resonators. Loud Mouth II® mufflers sold seperately

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