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SLP Loud-Mouth II Exhaust Systems

SLP Loud-Mouth II Exhaust Systems

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SLP's Camaro/Firebird Loud Mouth has always been one of the best-performing cat-back exhaust systems in the business. Now it's available with SLP's Loud Mouth II mufflers for a slightly lower tone. They offer flow and performance similar to their Loud Mouth resonators but feature a ceramic-wrapped, perforated core that reduces high-frequency noise and in-car resonance for complete control over your car's sound and performance characteristics.


  • Provide up to 25 additional horsepower
  • Improve 0-60 and 1/4 mile acceleration times
  • 50-State emissions legal
  • Offer easy, bolt-on installation
  • May improve fuel economy, depending on your driving style
  • Feature mandrel-bent 3'' intermediate pipes and hand-polished tailpipes
  • Constructed from 409 (intermediate) and 304 (tailpipes and tips) stainless steel
  • Covered by SLP's Limited Lifetime Warranty and Performance Guarantee

  • 2 Products

    Loud Mouth II Cat-Back Exhaust System
  • 1998-02 Camaro Z/28, SS LS1
  • 1998-02 Firebird Formula, Trans Am LS1
  • 3.5'' Slash-Cut Tips
  • $9.99

    Loud Mouth II Bullet-Type Mufflers
  • Ford Mustang GT/Cobra
  • Pair
  • $191.95
    Order Today Ships 08/29/14

    2 Products