Diamond Eye K4379S 4" DPF-Back Single Exit Exhaust System

The Diamond Eye K4379S is a complete 4-inch DPF-back single exit exhaust system engineered for 2017 and newer Ford F250/F350 Super Duty trucks equipped with the 6.7L Powerstroke diesel engine. This system is designed to replace the factory exhaust from the diesel particulate filter back, delivering improved exhaust flow and enhanced sound while maintaining emissions compliance.

Key Features:

• 4-inch mandrel-bent T409 stainless steel construction for superior durability and corrosion resistance
• DPF-back design that retains all factory emissions equipment for street-legal operation
• Includes vented stainless steel exhaust tip for a finished, professional appearance
• Single side exit configuration optimized for factory bed and cab configurations (excludes single cab models)
• Utilizes factory mounting points and hangers for straightforward bolt-on installation
• CNC mandrel-bent tubing ensures smooth, unrestricted exhaust flow
• Reduces exhaust backpressure for improved throttle response and lower EGTs
• Delivers a deeper, more aggressive diesel exhaust tone without excessive drone

Diamond Eye Performance manufactures all exhaust systems in-house at their facility in Athena, Oregon, using state-of-the-art CNC bending equipment and experienced technicians. The K4379S system is backed by Diamond Eye's 6-year limited warranty on stainless steel construction, ensuring long-lasting performance and reliability for your Super Duty diesel truck.