This MBRP exhaust system is perfect for Ford F - 250 and F - 350 Super Duty owners who want to upgrade their trucks. Whether you're driving on the highway or off - road, it gives your vehicle a powerful sound and better performance. The heavy - gauge Aluminized Steel tubing is great for those living in dry areas with little precipitation. It's designed to fit 2003 - 2007 Ford F - 250/350 6.0L models, including various sub - models like Harley - Davidson Edition, King Ranch, Lariat, XL, and XLT.