Specifications: Vehicle Fitment: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 Ford Powerstroke 6.7 Diesel. F-series F-250, F-350 & F-450 SuperDuty pickup truck. Crew cab short bed & crew cab long bed. *This will not fit the Cab & Chassis commercial style truck. Specifications: Exhaust Material: T-409 stainless steel. Unlike T-304 Stainless it's still magnetic. So if you testing to see if you actually got stainless; beware that a magnet will still stick to it. Thickness: 2mm Inlet Diameter: 4.0", 5.0"