Specifications: 100% Brand New Items, Never Used Or Installed Professional Installation is Highly Recommended No Instruction Included Muffler and Cat DELETE Pipe Kits: Made from SUS409 Steel 4" Diameter Exhaust Pipe Mandrel Bent 409 Steel Exhaust Straight Pipe System Produces Aggressive Performance Sound Increases Horsepower Increases Torque Increases Fuel Efficiency Bolt-On kit w/ All Necessary Pieces Package includes: 2X Muffler Delete Pipe 1X Clamp 2X Bolts Shown in the Picture Above Fitment: 2008-2010 Ford 6.4L Powerstroke Diesel F250 F350 F450 F550