Diamond Eye K5123A-RP 5" Cat-Back Exhaust Kit 2006-2007 Duramax LBZ Aluminized

The Diamond Eye K5123A-RP is a complete 5-inch aluminized steel cat-back performance exhaust system designed specifically for 2006-2007 Chevrolet Silverado and GMC Sierra 2500HD/3500HD trucks equipped with the 6.6L LBZ Duramax diesel engine. This kit fits all cab and bed length configurations, making it a universal solution for these model years.

Key Features:

• 5-inch diameter mandrel-bent aluminized steel construction for maximum exhaust flow and durability
• Cat-back single exit design replaces exhaust from catalytic converter to rear
• Includes turbo direct pipe (#321056) for improved turbocharger performance
• CNC mandrel-bent tubing maintains consistent pipe diameter throughout for unrestricted flow
• Direct bolt-on installation utilizes factory mounting locations and hangers
• No muffler configuration for maximum flow and aggressive diesel sound
• Reduces exhaust backpressure for lower EGTs and improved throttle response
• Backed by 1-year limited warranty on aluminized steel construction

This performance exhaust system delivers measurable gains in horsepower, torque, and fuel economy by eliminating restrictive factory exhaust components. The large 5-inch diameter tubing significantly reduces backpressure, allowing your Duramax to run cooler and more efficiently. The kit includes all necessary pipes, clamps, and hardware for a complete cat-back installation.

Note: This product does not include an exhaust tip. Not legal for sale or use in California on pollution-controlled vehicles.