Use this exhaust system when you want to enhance your car's performance and sound on the road. It's perfect for car enthusiasts who love a sporty look and feel. The main piping is 3 inches in diameter, and it has 3 straight-through mufflers with 4-inch polished welded-on double wall angle cut folded edge tips. It's suitable for 2005 - 2010 Chrysler 300 C SRT8, 2006 - 2010 Dodge Charger SRT8, and 2006 - 2008 Dodge Magnum SRT8 models.