2001-2004 6.6L GM Duramax LB7
Exhaust Components | Exhaust Tips | Mufflers

Your 2001-04 6.6L LB7 GM Duramax came with a 3.5" turbo back exhaust from the factory, equipped with a catalytic converter and a fairly "thick" muffler.  The factory turbo direct pipe is considered 3.5", but is more a flattened out exhaust pipe for factory clearance issues.  As long as you're not going hog wild on power, the factory exhaust size and turbo direct pipe are adequate.  However, if you want to add a distinctive look or sound to your Duramax, or try to optimize exhaust flow without spending a lot of money, this can be done by adding any variety of tips or aftermarket mufflers to the truck.  We carry numerous exhaust tip and muffler options, as well as muffler delete pipes, turbo direct pipes, and the list goes on. 

As always, if you have any questions about which component is right for you and your truck, do not hesitate to give us a call or send an e-mail to [email protected] and we would be happy to assist.

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Aeroturbine Non-Resonated 3.5" In x 3.5" Out Muffler 3535
AERO-3535
DPP Price: $99.00
Fits Most 3.5" Exhaust Systems
Aeroturbine Non-Resonated 4.0" In x 4.0" Out Muffler 4040
AERO-4040
DPP Price: $99.00
Fits Most 4" Exhaust Systems
Aeroturbine Non-Resonated 5.0" In x 5.0" Out Muffler 5050
AERO-5050
DPP Price: $106.20
Fits Most 5" Exhaust Systems
Aeroturbine Resonated 3.5" In x 3.5" Out Muffler 3535XL
AERO-3535XL
DPP Price: $119.00
 
Fits Most 3.5" Exhaust Systems
Aeroturbine Resonated 4.0" In x 4.0" Out Muffler 4040XL
AERO-4040XL
DPP Price: $119.00
 
Universal 4" Stainless Steel Muffler, Fits most trucks.
Aeroturbine Resonated 5.0" In x 5.0" Out Muffler 5050XL
AERO-5050XL
DPP Price: $129.00
 
Universal 5" Stainless Steel Muffler, Fits most trucks.
AFE 49-91003 MACH Force XP Aluminized Steel 4" Muffler Delete Pipe
AFE-49-91003
Regular Price: $60.00
DPP Sale Price: $54.00
AFE 49T40501-B12 Black Rolled Angle Cut 4" x 5" x 12" Exhaust Tip
AFE-49T40501-B12
Regular Price: $80.00
On Sale Now: $72.00
AFE Power MACH FORCE XP 5" Muffler
AFE-49-91012
Regular Price: $170.00
DPP Sale Price: $153.00
Universal 5" Exhaust Applications
BD Power Duramax UpPipes 01-16 6.6L GM Duramax
BD-1043800
DPP Price: $475.00
2001-2016 6.6L GM Duramax
Diamond Eye 4" Quick Connect Couplers
DE-QC400-
DPP Price: $94.68