Shop Aftermarket Exhaust Systems and upgrade your 2003-2007 Ford 6.0L Powerstroke. Exhaust installation is typically a DIY task that can completed right in your driveway. Exhaust systems are typically available in stainless or aluminized steel and are available in a wide range of diameters and styles. A performance exhaust kit will typically add horsepower/torque, decrease the exhaust gas temperatures (EGT's), and can even help engine efficiency. Different diameter exhausts are available such as 4" & 5" and offer unique sounds for your vehicle. All of the top manufacturers, including MBRP, Magnaflow, AFE, Banks Power, AP Emission Technologies, and more, are available today!