Chevrolet, GMC (6.6) Exhaust Header - aFe Power - 48-34139

Header and Downpipe
Twisted Steel Header, Up-Pipe and Downpipe
Available to Order
Twisted Steel 304 Stainless Steel Performance Package
GM Diesel Trucks 11-15 V8-6.6L (td) LML
Twisted Steel 304 Stainless Steel Performance Package GM Diesel Trucks 11-15 V8-6.6L (td) LML
Stainless Steel Construction: The headers are constructed out of heavy duty gauge, mandrel-bent 304 stainless steel tubing with a .120" wall for strength and durability. The up-pipes and down-pipe are constructed out of 2" and 3" 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 1/8 NPT EGT probe port is incorporated into the driver™s side manifold and a M14x1.5 port in the down pipe. This allows for easy installation of sensors, gauges or testing equipment.
4" Interlock Flex Pipes: The up-pipes utilizes heavy duty 4" 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.
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
Includes 1/8 NPT and M14 Exhaust Gas Temperature PortsIncludes 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; Includes 1/8 NPT and M14 Exhaust Gas Temperature Ports
Material: 304 Stainless Steel
WARNING CA Proposition 65: Yes
WARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Detailed Fitment Results
Year Make Model Fitment Notes 2011 Chevrolet Silverado 2500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2011 Chevrolet Silverado 3500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2011 GMC Sierra 2500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2011 GMC Sierra 3500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2012 Chevrolet Silverado 2500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2012 Chevrolet Silverado 3500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2012 GMC Sierra 2500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2012 GMC Sierra 3500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2013 Chevrolet Silverado 2500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2013 Chevrolet Silverado 3500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2013 GMC Sierra 2500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2013 GMC Sierra 3500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2014 Chevrolet Silverado 2500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2014 Chevrolet Silverado 3500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2014 GMC Sierra 2500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2014 GMC Sierra 3500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2015 Chevrolet Silverado 2500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2015 Chevrolet Silverado 3500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2015 GMC Sierra 2500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe 2015 GMC Sierra 3500 HD This item will not fit models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe