The AFE 48-34008 Twisted Steel Headers Up-Pipes and Down-Pipe Combo is an all-in-one kit for your 2004.5-2010 GM 6.6L Duramax. Upgrade your original equipped exhaust manifolds and up-pipes with the tubular style manifolds from AFE. Constructed from 1-3/4" 304 stainless steel, the mandrel-bent design allows the most flow providing increased spool-up and performance. Bolted to the manifolds are the 2" up-pipes also built from 304 stainless steel. While the manifolds and up-pipes feed your turbo, the AFE Down-pipe features a 3" construction to provide a smooth flowing exit for your exhaust gases.
1/2" Laser-Cut Flanges:
These headers come with 1/2" thick laser-cut head flanges that are designed to match the head port for a leak-free seal.
These unique headers are constructed of 1-3/4" mandrel-bent 304 stainless steel tubing with a .120" wall for strength and durability.
Optimized Tube Lengths:
Tube lengths are optimized for true pulse control technology which improves flow and performance.
These unique headers are constructed of 2" mandrel-bent 304 stainless steel tubing with a .120" wall for strength and durability.
4" Interlock Flex Pipes:
The down-pipes utilizes heavy duty 4" flex tubes with internal interlock liners.
High quality 3/8" thick flanges are used for a complete 360 degree sealing surface.
The Down-Pipe is constructed of 3" mandrel-bent 304 stainless steel tubing for unrestricted flow.
All Components TIG-Welded:
100% TIG-Welded by certified craftsmen for race proven strength and durability. TIG-Welding provides the strongest welds reducing stress cracks.
For a hassle-free installation this kit includes nuts, bolts and a dipstick/tube for clearance.
Features and Benefits
Includes Headers, Up-Pipes and Down-Pipe
100% Hand TIG-Welded For Strength and Durability
+67HP and 171 Ft-Lbs. (Verified by AFE In-House Dyno Test on 2006 LBZ)
Application Notes: This combo kit requires EGR Race Kit.This product is intended for off-road use only.AFE 49-04034 Atlas 3" Turbo Down-Pipe434138.00
Get better airflow and performance from your 2004.5-2010 GM 6.6L Duramax when you add the AFE 49-04034 Atlas 3" Turbo Down-Pipe. The Turbo Down-Pipe is coated in a sleek black finish that provides a custom look and is wrapped with thermal header tape to reduce EGT's for improved performance and durability. The CNC machined heavy duty inlet flange with turbine gasket and V-band outlet flange ensures you’re getting an OE-style, 360 degree sealing surface. Constructed from 3” mandrel bent tubing for superior airflow, the Turbo Down Pipe has a larger tube diameter and smooth transition bends for increased airflow between your OE turbo and exhaust to reduce EGT’s for quicker turbo spool times. Features:Sleek Black Finish3” Mandrel Bent TubingIncreased Airflow and Performance Wrapped In Thermal Header TapeAFE Mach Force XP Turbo Down-Pipe 49-44034128676.00
The Mach FORCE XP turbo down-pipe is engineered to perform in the most extreme environments. This down-pipe is constructed from ceramic coated 3"" mandrel bent 409 stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, quicker turbo spool times and lower EGTs.
Utilizing the factory mounting locations providing stability and a direct fit.
High quality OE style CNC machined flanges are used for a complete 360 degree sealing surface.
This down-pipe is ceramic coated inside and out. This coating developed by the aerospace industry is used to lower under hood temperatures by insulating the stainless steel tubing. The satin aluminum finish is chip and heat resistant up 1600 degrees."
Fleece FPE-DMAX-30DP 3" 304 Stainless Steel HX40 Downpipe3324315.00
The Fleece FPE-DMAX-30DP 3" 304 Stainless Steel HX40 Downpipe allows you to connect the exhaust system in your 2001-2015 GM 6.6L Duramax to the HX40 outlet on your aftermarket turbocharger. This 3" downpipe features a T304 stainless steel construction and includes an HX40 clamp.
HX40 Turbo Outlet Flange on Top
Factory Exhaust Connection on Bottom
3" T304 Stainless Steel Construction
For Use With HX40 Outlet Turbochargers
MBRP GM8424 Turbo Outlet 3" Performance Duramax Down Pipe45597.00
XDP has teamed up with MBRP to help produce the missing link in the Duramax Exhaust System. Now Duramax LLY/LBZ/LMM owners have the ability of connecting the turbo and aftermarket down-pipe back exhaust system by removing the restrictive stock pipe pictured below. The MBRP down pipe provides a smoother flow from the turbo resulting in lower EGTs and increased performance. The down pipe is a relatively easy install due to the precision bends that youve come to expect from MBRP.
3" Mandrel Bent
Extra Thick Aluminized Steel
Satin Black Ceramic Coating
High-Heat Thermal Wrap
Steel CNC Machined Flanges
Smoother Flow from Turbo
Faster Turbo Spool-up
MBRP GMCA424 3" Turbo Downpipe (50 State Legal)312917.00
The MBRP GMCA424 3" Turbo Downpipe eliminates the restrictive factory downpipe in your 2004.5-2010 GM 6.6L Duramax. Featuring a mandrel bent aluminized steel construction, the MBRP 3" Turbo Downpipe provides a smoother flow from the turbo resulting in lower EGT's, increased performance, throatier sound, and faster turbo spool-up.
Each Downpipe is coated with a satin black high-heat coating and wrapped with a high-heat thermal wrap for added protection. Featuring CNC machined flanges, this Downpipe is a direct bolt-on replacement, and is manufactured with precision bends for the perfect fit that you've come to expect from MBRP.
CARB EO# D-763
Coated and Heat-Wrapped
Aluminized Steel Construction
PPE 117000500 3" Stainless Steel Downpipe219278.00
The PPE 117000500 3" Stainless Steel Downpipe for your 2004.5-2010 GM 6.6L Duramax allows you to removed your crushed oval stock downpipe and replace it with a smooth round, long lasting 304 stainless steel down pipe. Spiral wrapped with titanium woven thread for superior heat that's held in place with stainless steel clamps.Features: 3" Mandrel-BentCARB E.O. D-701-4 Titanium Woven Heat-Wrap 304 Stainless Steel Construction