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

---tab Description--- Description 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! This product is designed for users who want to keep their factory DPF and upgrade the exhaust piping behind it . 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! 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 Filter Back Mateial T409/T304 Stainless Steel Exhaust tip Mateial T201 Stainless Steel Exhaust Diameter 4" Installation Bolt-on (no welding required) Sound Level Performance-enhanced tone (deeper but not overly loud) Key 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 Pipe x 1 Tail Pipe 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 4'' DPF Back Instruction for 6.7L Powerstroke 2011-2016 ---tab Fitment--- 2011-2016 Ford F-250 / F-350 / F-450 Super Duty 6.7L Powerstroke Does NOT fit Cab Chassis configurations Note: For maximum performance, pair with a DPF/CAT delete pipe (off-road use only). ---tab FAQ--- Q1: Does this DPF Back exhaust system keep the factory DPF (Diesel Particulate Filter)? A1: Yes, this is a "DPF Back" system, meaning it only replaces the exhaust section after the DPF (including muffler/pipe). It does not delete the DPF, ensuring your truck remains emissions-compliant. Q2: Will this exhaust improve performance or fuel economy? A2: Since the DPF remains in place, gains are modest. However, the 4'' straight-through design reduces backpressure, which may slightly improve throttle response, torque, and exhaust flow efficiency. Q3: Does installation require cutting the stock exhaust? Do I need professional help? A3: Most DPF Back kits are bolt-on but may require cutting the pipe after the DPF. DIY-friendly with basic tools (saw, wrenches), but professional installation ensures a perfect fit. Q4: Will this make my truck louder? Will diesel "ticking" noise increase? A4: Expect a deeper, more aggressive tone than stock, but the DPF and catalysts keep it from being excessively loud. The diesel "clatter" will still be present but may be slightly more noticeable. ---tab Shipping Returns--- Fast Shipping Policy Your order will be dispatched within 1-2 business days , and the package will arrive within your order's estimated date. Click for Shipping Policy Easy Return Policy Every order comes with a 14-day free return , which means you don't have to pay for a return slip. Click for Return Policy