Diamond Eye K4124S-RP 4" Turbo-Back Exhaust System 2006-2007.5 Duramax 6.6L

The Diamond Eye K4124S-RP is a complete 4-inch turbo-back exhaust system engineered specifically for 2006-2007.5 Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks equipped with the 6.6L Duramax diesel engine. This system fits all cab and bed length configurations, providing a universal solution for heavy-duty diesel truck owners seeking improved exhaust flow and performance.

Key Features:

• 4-inch diameter aluminized steel construction for maximum exhaust flow and reduced backpressure
• Turbo-back design replaces exhaust from turbo outlet to tailpipe for complete system upgrade
• Mandrel-bent tubing maintains consistent diameter through bends for optimal flow characteristics
• Includes all necessary hardware, clamps, and hangers for complete installation
• Universal fit accommodates all 2006-2007.5 Duramax cab and bed configurations
• Aluminized steel construction provides excellent corrosion resistance at an economical price point

This exhaust system delivers noticeable improvements in throttle response, turbo spool-up, and overall engine performance by reducing exhaust restriction. The 4-inch design is ideal for trucks used for towing, hauling, or performance applications where maximizing exhaust flow is critical. Diamond Eye's precision mandrel-bending process ensures consistent pipe diameter throughout the system, eliminating turbulence and flow restrictions common in crush-bent alternatives.