4'' DPF Back Exhaust 2011-2016 6.7L Powerstroke Ford F250 F350 F450

Want to keep your DPF but still get that deep, aggressive exhaust sound for your 2011-2016 6.7L Powerstroke ? Upgrade to SPELAB's DPF-back pipe! You can choose between affordable 409 stainless steel (a direct OE replacement that solves rust and aging issues) or premium 304 stainless steel for better durability. Enjoy the black-coated exhaust tip for a sleek look and the expanded outlet diameter for improved sound and flow. Get the rumble you want—without deleting your DPF! .material-comparison { width: 100%; border-collapse: collapse; font-size: 14px; } .material-comparison th, .material-comparison td { border: 1px solid #ddd; padding: 10px; text-align: center; } .material-comparison th { background-color: #f8f8f8; font-weight: bold; } .material-comparison tr:nth-child(even) { background-color: #f2f2f2; } @media (max-width: 600px) { .material-comparison th, .material-comparison td { font-size: 12px; padding: 6px; } } Parameter T304 T409 Corrosion Resistance 18% Cr, 8% Ni (Better) 11% Cr, trace Ti (Good) High Temp Resistance ≤ 870°C ≤ 800°C Oxidation Resistance Excellent Good Salt/Cl - Resistance Excellent Good Sulfide Resistance Excellent Good Estimated Lifespan 10–15+ years 7–12 years Specification .spec-table { width: 100%; border-collapse: collapse; font-size: 14px; } .spec-table th, .spec-table td { border: 1px solid #ddd; padding: 10px; text-align: left; } .spec-table tr:nth-child(even) { background-color: #f2f2f2; } .spec-table th { background-color: #f8f8f8; font-weight: bold; } @media (max-width: 600px) { .spec-table th, .spec-table td { font-size: 12px; padding: 6px; } } Filter Back Material T409/T304 Stainless Steel Exhaust Tip Material T201 Stainless Steel Exhaust Diameter 4" Installation Bolt-on (no welding required) Sound Level Performance-enhanced tone (deeper but not overly loud) Features Performance Boost – Reduces exhaust restriction for better horsepower, torque, and fuel efficiency. Durable Construction – T409 stainless steel resists corrosion and withstands daily use. Compared to T409, T304 contains higher nickel content (8-10%) for enhanced rust protection, especially in coastal or high-salt conditions. Easy Bolt-On Installation – Uses factory-style hangers for a perfect fit (no welding needed). Enhanced Exhaust Sound – Deeper, more aggressive tone without excessive drone. OEM+ Fitment – Precision-engineered to match factory mounting points. DPF-Compatible – Works with your stock diesel particulate filter (emissions compliant). Stylish Black Exhaust Tip – Adds a rugged, custom appearance to your truck. What's in the BOX? 4"Extension Pipe x 1 Over-Axle Pipе x 1 Tail Pipе x 1 Hanger x 1 Exhaust Tip x 1 4" Wide band clamps x 2 Gasket x 1 7/16" Hex bolts x 3 7/16" Hex nutsx 3 Installation