Bolt-on some serious power with a SLP Cat-Back Exhaust System. Now available from SLP is the stainless steel, Cat-Back Modular Exhaust System for the 6.1L/6.4L Hemi powered 2005-2013 Charger SRT-8, 2006-2008 Magnum SRT-8 and 2005-2010 Chrysler 300 SRT-8. It is available in Loud Mouth II and Loud Mouth designs. Thanks to the modular design, either mufflers or resonators can be ordered individually and interchanged separately.