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Home / Exhaust / Headers & Manifolds / aFe Twisted Steel Headers Up-Pipes & Down-Pipe 11-15 GM Diesel Trucks V8-6.6L (td) LML
aFe

aFe Twisted Steel Headers Up-Pipes & Down-Pipe 11-15 GM Diesel Trucks V8-6.6L (td) LML

PART 48-34139CATEGORY Headers & Manifolds
$2,593.00
$2,593.00
1

Product information

Manufacturer information. Check the part number and installation requirements for your vehicle.

Supplier details checked 2026-09-23 · Test catalog

Product description

Twisted Steel 304 Stainless Steel Performance Package GM Diesel Trucks 11-15 V8-6.6L (td) LML

Twisted Steel 304 Stainless Steel Performance Package

Features

Includes Heavy-Duty Gauge, .120 Wall Headers, .120 Wall Up-Pipes, and .065 Wall Down-Pipe

Smooth Transitions and Mitered Collectors Improve Flow

Includes 1/8 NPT and M14 Exhaust Gas Temperature Ports

Brushed Finish 304 Stainless Steel Construction

Supplier category
Exhaust, Mufflers & Tips
Supplier subcategory
Headers & Manifolds
UPC / barcode
802959483237
Units per product
1
Supplier Proposition 65 status
Y
Supplier EPA status
N/A
Air freight prohibited
No
Not CARB approved
Yes
CARB acknowledgement required
Yes
Freight delivery required
No
Powersports product
No
More manufacturer information

Other product descriptions

aFe Twisted Steel Headers Up-Pipes & Down-Pipe 11-15 GM Diesel Trucks V8-6.6L (td) LML

Twisted Steel Header, Up-Pipe & Downpipe

Header & Downpipe

About the manufacturer

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.

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aFe Twisted Steel Headers Up-Pipes & Down-Pipe 11-15 GM Diesel Trucks V8-6.6L (td) LML | Q40 Motorsports