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SLP Cat-Back Exhaust for your 2008-2014 Challenger R/T
STRATEGY

In keeping with our goal of providing our customers with the best possible value, we have tested a large group of components specifically designed for the HEMI Challenger R/T.
We have invested many hours evaluating and refining each of the performance products on our HEMI Challenger R/T, to ensure that we could develop as much power as possible, as safely as possible.
The SEARCH menu on the left side of this page, lists the clear winners when it comes to performance vs. dollar value. Please check back often as we are always developing new ways to improve performance with fuel economy.
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SLP (modular) Cat-Back Exhaust Systems
2008-2014 Challenger 5.7L R/T HEMI

Now available from SLP is the stainless steel, Catalyst-Back Modular Exhaust System for the 6.1L Hemi powered 2008-2014 R/T HEMI Challenger. 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 the bullet-style Loud Mouth™ resonators, to a quieter Loud Mouth II™ mufflers, and the "PowerFlo" a quieter but noticeable note note.

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, and also MOTOBLUE HEADERS. If upgrading to SLP Long Tube Headers at the same time, contact us for details.

Loud Mouth Cat-back System Image
LOUD MOUTH
Loud Mouth II Cat-back System Image
LOUD MOUTH 2

    SLP Loud Mouth™ Cat-back system for R/T HEMI features:

  • Stainless steel, 2.50" mandrel-bent tubing.


  • Polished Loud Mouth™ mufflers w/SLP's logo embossed in 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.
Part# SLP D31029

    SLP Loud Mouth II™ Cat-back system for R/T HEMI features:

  • Stainless steel, 2.50" mandrel-bent tubing.


  • Polished Loud Mouth™ mufflers w/SLP's logo embossed in 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.
Part# SLP D31030

    SLP "PowerFlo" Cat-back system for R/T HEMI features:

  • Stainless steel, 2.50" mandrel-bent tubing.


  • Polished Loud Mouth II™ resonators and PowerFlo™ mufflers w/SLP's logo embossed in 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.
Part# SLP D31019
$ DISC.



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