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.

AFE Power MACH FORCE XP 5" Muffler
AFE-49-91012
DPP Price: $170.00
BD Power Duramax UpPipes 01-16 6.6L GM Duramax
BD-1043800
DPP Price: $475.00
Diamond Eye 4" Quick Connect Couplers
DE-QC400-
DPP Price: $94.68
FLO~PRO Exhaust Lap Joint Clamps
FLO-
DPP Price: $6.61
 
FLO~PRO Performance Diesel Mufflers
FLO-
DPP Price: $87.36
 
FLO~PRO Turbo Direct Pipe 01-04 LB7
FLO-10101
DPP Price: $149.33
Grand Rock 5" Hood Stack 20" long Kits
GR-HSK-5
DPP Price: $125.19
Grand Rock 6" Hood Stack 20" long Kits
GR-HSK-6
DPP Price: $130.76
 
Grand Rock 7" Hood Stack 20" long Kits
GR-HSK-7
DPP Price: $201.77
Grand Rock Dual 4" Stack Bed Kit
GR-DPU-4SK
DPP Price: $273.42
Grand Rock Dual 5" Stack Bed Kit
GR-
DPP Price: $325.86
Grand Rock Dual 6" Stack Bed Kit
GR-
DPP Price: $344.52
 
Grand Rock Dual 7" Stack Bed Kit
GR-
DPP Price: $363.16
Grand Rock High Flow 5" x 51" Muffler | HF-1051
GR-HF-1051
DPP Price: $286.06
Grand Rock Single 4" Stack Bed Kit
GR-SPU-4SK
DPP Price: $150.93
Grand Rock Single 5" Stack Bed Kit
GR-
DPP Price: $198.64
Grand Rock Single 6" Stack Bed Kit
GR-
DPP Price: $213.17
MBRP 4" Quiet Tone Diesel Muffler
MBRP-M1004
DPP Price: $139.99
MBRP 4" Resonator T304 Stainless R1009
MBRP-R1009
DPP Price: $159.99
MBRP 5" Quiet Tone Diesel Muffler
MBRP-M2220
DPP Price: $169.99