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RPI Designs, located
Salem, Ohio, offers many c5/c6/ c7 corvette Stingray



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C5/C6/C7/C8 Corvette Stingray Parts & Accessories, 2010-2015 Camaro, 2016-2019 6th Generation Camaro and 2015-2019 Ford Mustang

Painted Parts are painted to order and take additional time, right now we are about a 4-5 week lead time. Please keep this in mind.

2008-2013 Challenger SRT8 SLP Loudmouth II Exhaust - RPIDesigns.com
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2008-2013 Challenger SRT8 SLP Loudmouth II Exhaust
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2008-2013 Challenger SRT8 SLP Loudmouth II Exhaust
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2008-2013 Challenger SLP Loudmouth II Exhaust System

Now available from SLP is the stainless steel, Catalyst-Back Modular Exhaust System for the 6.1L Hemi powered 2008-2013 SRT-8 Challenger. It is available in Loud Mouth™ and Loud Mouth II™ designs. Thanks to the modular design, either resonators or mufflers can be ordered individually and interchanged separately. 

These systems provide a noticeable performance gain of up to 12 horsepower and are designed using SLP's innovative modular technology. This enables customers the flexibility to change the performance and noise-level characteristics by switching from our bullet-style Loud Mouth™ resonators, to our quieter Loud Mouth II™ mufflers, in order to suit their individual requirements.

Each system is constructed from 3" stainless steel mandrel-bent tubing, for unrestricted flow with an integrated 3.0" PowerFlo-X™ crossover pipe that will bolt to the factory 2.75" down pipes. Re-Use your factory Challenger Square Exhaust Tips. Easy bolt-on installation and all hardware and installation instructions are included, backed by SLP's Lifetime Warranty.

NOTE: Designed to work with STOCK exhaust manifolds. If upgrading to our Long Tube Headers use part# D30008 (Headers)

NOTE: This part is not compatible with the Challenger SRT8 equipped with a 6-speed manual transmission.

Loud Mouth™ catalyst-back exhaust system for SRT-8 features:

  • stainless steel, 3" mandrel-bent tubing
  • Polished Loud MouthII ™ mufflers w/SLP's logo embossed on the body
  • Integrated PowerFlo-X™ Crossover Pipe w/2.75" Inlet
  • Factory Style Ball-Band Clamps included to re-use factory Challenger Tips
  • Easy, bolt-on installation and SLP's lifetime warranty
  • All hardware and installation instructions are included

 Fitment:  2008, 2009, 2010, 2011, 2012, 2013 Dodge Challenger 

A very popular modification is the 2008-2013 Challenger SRT8 SLP Loudmouth II Exhaust from RPI Designs.
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RPI Designs
11800 Salem Warren Road
Salem, Ohio 44460

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