Stainless Steel Construction: The headers are constructed out of heavy duty gauge, mandrel-bent 304 stainless steel tubing with a.120 Inch wall for strength and durability. The up-pipes and down-pipe are constructed out of 2 Inch and 3 Inch mandrel-bent 304 brush finished stainless steel tubing. Optimized Tube Lengths: Tube lengths and mitered collectors are optimized for true pulse control technology which improves flow and performance across the power band.

Heavy-Duty Flanges: A CNC-machined v-band inlet flange and heavy-duty outlet flange provide a secure, leak-free seal. Egt Ports: Two exhaust gas temperature (Egt) ports are provided with this system. A 1/8Сњ Npt Egt probe port is incorporated into the drivers side manifold and a M14x1.5 port in the down pipe.

This allows for easy installation of sensors, gauges or testing equipment. 4 Inch Interlock Flex Pipes: The up-pipes utilizes heavy duty 4 Inch flex tubes with internal interlock liners. Retains EGR Flange: This system retains the EGR flange.

Factory Mounting Locations: These headers utilize factory locations making it a true bolt-on system, no cutting or drilling required and includes all necessary hardware for a hassle-free installation. Fitment Note: This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe. aFe Power exhaust systems are engineered and manufactured in our Corona, California facility.

Features and Benefits:

• Includes Heavy-Duty Gauge,.120 Wall Headers,.120 Wall Up-Pipes, and.065 Wall Down-Pipe
• Brushed Finish 304 Stainless Steel Construction
• Optimized Tube Lengths, Smooth Transition Bends, and Mitered Collectors Improve Flow
• Smooth Transitions and Mitered Collectors Improve Flow
• Includes 1/8 Npt and M14 Exhaust Gas Temperature Ports

Details:

• Emission Code: 1
• Fuel Type: Diesel
• Liter: 6.6 Liter
• Material: 304 Stainless Steel
• Series: Twisted Steel
• Warranty: 2 Year

Applications:

• GM Diesel Trucks 11-15 V8-6.6L (td) Lml