AFE Twisted Steel Headers / Up-Pipes / Down Pipe Kit 15.5-16 GM 6.6L Duramax LML
Massively open the exhaust side of your LML's engine with the AFE Twisted Steel Headers, Up-Pipes, and Downpipe package. This kit features heavy duty .120 wall fabricated style headers that not only look good, but they also increase exhaust flow for quicker turbo spool up and lower EGT's. The tube lengths and mitered collectors are optimized for true pulse control technology which improves flow and performance across the power band. Two EGT ports are provided in this kit. One in the driver side manifold and an additional M14x1.5 port in the downpipe for installation of sensors, gauges, or testing equipment.
The up-pipes feature heavy duty flanges and 4" flex tubes with internal interlock liners all while retaining the factory EGR system. Just like the manifolds, the up-pipes are constructed from 304 stainless steel mandrel bent tubes with a brushed finish.
The downpipe or turbo direct pipe utilizes a 3 bolt exhaust flange connection and is a true bolt on downpipe requiring no cutting, drilling, or modifications for installation.
Product Information
Product Information
Shipping & Returns
Shipping & Returns











AFE Twisted Steel Headers / Up-Pipes / Down Pipe Kit 15.5-16 GM 6.6L Duramax LML
AFE Twisted Steel Headers / Up-Pipes / Down Pipe Kit 15.5-16 GM 6.6L Duramax LML
Massively open the exhaust side of your LML's engine with the AFE Twisted Steel Headers, Up-Pipes, and Downpipe package. This kit features heavy duty .120 wall fabricated style headers that not only look good, but they also increase exhaust flow for quicker turbo spool up and lower EGT's. The tube lengths and mitered collectors are optimized for true pulse control technology which improves flow and performance across the power band. Two EGT ports are provided in this kit. One in the driver side manifold and an additional M14x1.5 port in the downpipe for installation of sensors, gauges, or testing equipment.
The up-pipes feature heavy duty flanges and 4" flex tubes with internal interlock liners all while retaining the factory EGR system. Just like the manifolds, the up-pipes are constructed from 304 stainless steel mandrel bent tubes with a brushed finish.
The downpipe or turbo direct pipe utilizes a 3 bolt exhaust flange connection and is a true bolt on downpipe requiring no cutting, drilling, or modifications for installation.
Original: $2,461.00
-70%$2,461.00
$738.30Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Massively open the exhaust side of your LML's engine with the AFE Twisted Steel Headers, Up-Pipes, and Downpipe package. This kit features heavy duty .120 wall fabricated style headers that not only look good, but they also increase exhaust flow for quicker turbo spool up and lower EGT's. The tube lengths and mitered collectors are optimized for true pulse control technology which improves flow and performance across the power band. Two EGT ports are provided in this kit. One in the driver side manifold and an additional M14x1.5 port in the downpipe for installation of sensors, gauges, or testing equipment.
The up-pipes feature heavy duty flanges and 4" flex tubes with internal interlock liners all while retaining the factory EGR system. Just like the manifolds, the up-pipes are constructed from 304 stainless steel mandrel bent tubes with a brushed finish.
The downpipe or turbo direct pipe utilizes a 3 bolt exhaust flange connection and is a true bolt on downpipe requiring no cutting, drilling, or modifications for installation.






















