Diamond Eye K4257A 4" DPF-Back Exhaust System 2014+ Dodge Ram 2500 6.7L Cummins Mega Cab

The Diamond Eye K4257A is a complete 4-inch aluminized steel DPF-back single exhaust system engineered specifically for 2014 and newer Dodge Ram 2500 Mega Cab trucks with the 6.7L Cummins diesel engine and short box configuration. This performance exhaust system connects directly to the factory diesel particulate filter, replacing the restrictive stock exhaust to unlock more horsepower, torque, and improved fuel economy.

Key Features:

• 4-inch mandrel-bent aluminized steel tubing for maximum exhaust flow and durability
• DPF-back design retains all emissions equipment for 50-state legal operation
• Single exit configuration optimized for Mega Cab short box layout
• Precision-engineered using CNC mandrel bending for smooth, unrestricted flow
• Direct bolt-on installation with all necessary hardware included
• Reduces exhaust gas temperatures and backpressure for improved engine performance
• Deeper, more aggressive exhaust tone compared to stock

Diamond Eye's mandrel-bent construction maintains consistent pipe diameter throughout each bend, eliminating the pinch points and flow restrictions found in crush-bent exhaust systems. The aluminized steel construction provides excellent corrosion resistance and long-term durability at a value-oriented price point. This system is designed for enthusiasts seeking maximum performance gains while maintaining full emissions compliance.