Description
Large Bore-HD 4” 409 Stainless Steel DPF-Back Exhaust System – Polished Tip
Engineered for extreme performance, the Large Bore-HD 4” DPF-Back Exhaust System by aFe POWER delivers maximum flow, increased horsepower, and enhanced torque for your 6.7L Power Stroke Super Duty. Designed for reliability and aggressive performance, this system is built from mandrel-bent 4” 409 stainless steel tubing to withstand the toughest conditions while lowering exhaust gas temperatures (EGTs).
The system features a muffler-delete design with a polished stainless steel tip for a clean, aggressive look and uncompromised performance. Perfectly engineered to combine performance, fit, and value, the Large Bore-HD DPF-Back exhaust is a no-compromise upgrade for Ford Super Duty diesel owners.
Key Features & Benefits
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Mandrel-Bent 4” 409 Stainless Steel Tubing: Maximum flow and durability
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Muffler-Delete Design: Produces a smooth, performance-focused exhaust tone
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OE-Style Fitment: Uses factory mounting points and bayonet hangers for long-term stability
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Quick Installation: Uses all factory mounting locations—no cutting or modifications required
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Leak-Free Seal: OE-style flange and band clamps provide a complete 360° sealing surface
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Durable Performance: Smooth transition bends reduce turbulence, improving horsepower, torque, and lowering EGTs
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Polished Stainless Steel Tip: Aggressive styling with corrosion-resistant finish
Fitment Information
Fits:
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2011–2014 Ford F-250 Super Duty – 6.7L V8 Power Stroke Diesel
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2011–2014 Ford F-350 Super Duty – 6.7L V8 Power Stroke Diesel
Emissions Compliance
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CARB EO#: Not Required
Made in the USA
All aFe POWER exhaust systems are engineered and manufactured in Corona, California, ensuring premium materials, precision fitment, and proven performance.
The Large Bore-HD 4” 409 Stainless Steel DPF-Back Exhaust System is the ultimate upgrade for Super Duty owners seeking maximum flow, aggressive sound, and long-lasting durability.
