RPI Designs, located in 
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RPI Designs Paint and Carbon Fiber is very busy right now. Please allow for around three weeks for custom parts to ship out. Thank you for the support!


Quality Parts & Accessories for C5/C6/C7 Corvette, 2010-2013 Camaro, Ford Mustang and Dodge Challenger Since 1999

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Item Details
Challenger R/T SLP Loudmouth Exhaust 2008-2013 Item Name:
Challenger R/T SLP Loudmouth Exhaust 2008-2013
Item #:
D31029
Price
$649.95
Average Rating:


Bolt-on some serious power with a Challenger SLP Cat-Back Exhaust System

Now available from SLP is the stainless steel, Catalyst-Back Modular Exhaust System for the 5.7L 2008-2009 Challenger. It is available in Loud Mouth™, Loud Mouth II™ and PowerFlo 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, or for that more civil muscular sound the PowerFlo mufflers in order to suit their individual requirements (cutting of rear pipes is needed to switch from the Loud Mouth Series to the PowerFlo Series).

Each system is constructed from 3" stainless steel mandrel-bent tubing, for unrestricted flow with an integrated 3" PowerFlo-X™ Crossover Pipe that will bolt to the factory 2.5" 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.

Loud Mouth™ catalyst-back exhaust system for 5.7L features:

  • Stainless Steel, 3" mandrel-bent tubing
  • Polished Loud Mouth ™ mufflers w/SLP's logo embossed in the body
  • Integrated PowerFlo-X™ Crossover Pipe w/2.5" 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
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RPI Designs
142 Westville Lake Road
Beloit, Ohio 44609

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