This MBRP exhaust system is designed for 2004 - 2007 Dodge Ram 2500 and 3500 trucks with Cummins 600/610 engines. It's great for those who live in dry areas and want to upgrade their vehicle's performance and sound on a budget. The system uses heavy - gauge aluminized steel tubing that resists damage from road debris. The mandrel - bent tubing helps the exhaust flow smoothly, which means more power for your engine. It's a great addition whether you're using your truck for daily commuting or light hauling.