Diamond Eye K4129S 4 Inch Stainless Steel DPF-Back Exhaust System

The Diamond Eye K4129S is a complete 4-inch stainless steel diesel particulate filter (DPF) back exhaust system designed for 2007.5-2010 Chevrolet and GMC 2500/3500 trucks equipped with the 6.6L LMM Duramax engine. This comprehensive kit fits all cab and bed length configurations and includes a turbo direct pipe to replace the factory's restrictive unit.

Key Features:

• 4-inch mandrel-bent T409 stainless steel construction for maximum exhaust flow and durability
• Complete DPF-back single exit system with turbo direct pipe included
• 5-inch polished and vented stainless steel exhaust tip
• Direct bolt-on installation using factory hangers and mounting points
• Increases horsepower and torque while reducing exhaust gas temperatures (EGTs)
• Improves fuel economy by 1-2 MPG by reducing exhaust backpressure
• Delivers a deeper, more aggressive exhaust tone
• Universal fitment for all 2007.5-2010 Duramax LMM cab and bed configurations
• 6-year limited warranty on stainless steel components

This exhaust system utilizes precision CNC mandrel bending technology to maintain consistent tube diameter throughout all bends, ensuring smooth exhaust flow and maximum performance gains. The kit includes all necessary hardware, clamps, and hangers for a complete installation using common hand tools.