The aFe MACHForce XP Exhaust is perfect for Dodge diesel truck owners who want to enhance their vehicle's performance. Whether you're on long road trips or off - road adventures, this exhaust will serve you well. It's made from 4 - inch 409 stainless steel tubing and comes with a 24 - inch muffler. Ideal for those looking to upgrade their 2004.5 - 2007 Dodge trucks with a 5.9L L6 engine.