Shop Aftermarket Exhaust Systems and upgrade your 2007.5-2018 Dodge Ram 6.7L Diesel. A performance exhaust will typically add horsepower/torque, lower the exhaust gas temperatures (EGT's), and can also help engine efficiency. Exhausts are commonly available in either 4" or 5" diameters. Adding an exhaust is typically a DIY installation and can be done right in your driveway with basic hand tools. When you start shopping for an exhaust you will notice multiple construction options and price ranges. Many manufacturers offer exhaust systems constructed in either aluminized steel or stainless steel. You can find exhaust systems from all of the leading brands like MBRP, Magnaflow, AFE, Banks Power, AP Emission Technologies, and more!