This MBRP P Series Cat Back Exhaust System is designed for 2004.5 - 2007 Dodge 2500/3500 Cummins 600/610 vehicles. It's great for those who drive in dry climates and want to upgrade their vehicle's performance and sound without spending a fortune. Whether you're on the highway or off - road, this exhaust system will make your drive more exciting. The exhaust uses heavy - gauge Aluminized Steel tubing, which is durable and helps resist damage from debris. The mandrel - bent tubing ensures smooth exhaust flow, improving your engine's power and longevity.