Exhaust Kits | 2001-2004 GM 6.6 Duramax LB7

The 2001-2004 6.6L LB7 GM Duramax's came factory equipped with a 3.5" turbo back aluminized exhaust with a catalytic converter and muffler. While this system is reasonably adequate for stock to mildly ... read more

MBRP 4" Exhaust-Single Outlet-Cat Back 01-05 6.6L GM Duramax LB7 / LLY MBRP-S6000AL 0.00 MBRP 4" Exhaust-Single Outlet-Cat Back 01-05 6.6L GM Duramax LB7 / LLY MBRP Exhaust S6000AL Diesel Power Products now sells MBRP 4" Exhaust-Single Outlet-Cat Back for 01-05 6.6L GM Duramax LB7 / LLY S6000304 / 409 / AL MBRP 4" Exhaust-Single Outlet Turbo Direct Pipe Back 01-04 6.6L GM Duramax MBRP-S6004AL-main 0.00 MBRP 4" Exhaust-Single Outlet Turbo Direct Pipe Back 01-04 6.6L GM Duramax MBRP Exhaust S6004AL Diesel Power Products now sells MBRP 4" Exhaust-Single Outlet-Down Pipe Back 01-04 6.6L GM Duramax MBRP 4" Exhaust-Dual Outlet Turbo Direct Pipe Back 01-04 6.6L GM Duramax MBRP-S6006AL 106.00 MBRP 4" Exhaust-Dual Outlet Turbo Direct Pipe Back 01-04 6.6L GM Duramax MBRP Exhaust S6006AL Diesel Power Products now sells MBRP 4" Exhaust-Dual Outlet-Down Pipe Back for the 01-04 6.6L GM Duramax LB7 Magnaflow 16930 4" Cat-Back Single Outlet Exhaust 01-05 6.6L LB7/LLY GM Duramax Crew Cab, Long Bed MF-16930 65.00 Magnaflow 16930 4" Cat-Back Single Outlet Exhaust 01-05 6.6L LB7/LLY GM Duramax Crew Cab, Long Bed MagnaFlow Exhaust 16930 Diesel Power Products carries the Magnaflow 4" Cat-Back Single Outlet Exhaust for 01-05 6.6L LB7 / LLY GM Duramax Crew Cab, Long Bed 17931 / 16931 / 16930 Silverline Dual Outlet 4" Turbo Direct Pipe Back 01-04 6.6L GM Duramax LB7 CS103 SLV-CS103409 100.00 Silverline Dual Outlet 4" Turbo Direct Pipe Back 01-04 6.6L GM Duramax LB7 CS103 Silverline Exhaust CS103409 Diesel Power Products now sells Silverline DUAL OUTLET-Turbo Back 01-04 6.6L GM Duramax LB7 CS103 Silverline Muffler Eliminator Pipe 99-07 Ford Powerstroke / 01-07 6.6L GM Duramax SLV-DMPSS 25.00 Silverline Muffler Eliminator Pipe 99-07 Ford Powerstroke / 01-07 6.6L GM Duramax Silverline Exhaust DMPSS Diesel Power Products now sells Silverline Eliminator Pipe 99-07 7.3L / 6.0L Ford Powerstroke / 01-07 6.6L GM Duramax LB7 / LLY / LBZ DMPSS Silverline In Bed Plumbing Kit for Stacks DSK000 SLV-DSK000-Main 0.00 Silverline In Bed Plumbing Kit for Stacks DSK000 Silverline Exhaust DSK000 Diesel Power Products now sells Silverline In Bed Plumbing Kit for Stacks DSK000 Diamond Eye 4" Aluminized Turbo Direct Pipe Back Dual Exhaust 01-04 6.6L GM Duramax K4116A DE-K4116A-Main 0.00 Diamond Eye 4" Aluminized Turbo Direct Pipe Back Dual Exhaust 01-04 6.6L GM Duramax K4116A Diamond Eye Performance K4116A Diesel Power Products carries the Diamond Eye 4" Aluminized Turbo Back Dual Exhaust for 01-04 6.6L LB7 Duramax K4116A Diamond Eye 4" Stainless Steel Turbo Direct Pipe Back Dual Exhaust 01-04 6.6L Duramax K4116S DE-K4116S-Main 0.00 Diamond Eye 4" Stainless Steel Turbo Direct Pipe Back Dual Exhaust 01-04 6.6L Duramax K4116S Diamond Eye Performance K4116S Diesel Power Products carries Diamond Eye 4" Stainless Steel Turbo Back Duals 01-04 6.6L Duramax K4116S Diamond Eye 4" Stainless Steel Turbo Direct Pipe Back Single Outlet Exhaust 01-04 6.6L GM Duramax K4 DE-K4114S-Main 0.00 Diamond Eye 4" Stainless Steel Turbo Direct Pipe Back Single Outlet Exhaust 01-04 6.6L GM Duramax K4 Diamond Eye Performance K4114S Diesel Power Products carries Diamond Eye 4" Stainless Steel Turbo Back Single 01-04 6.6L LB7 Duramax K4114S Diamond Eye 5" Turbo Direct Pipe Back Aluminized Single Outlet Exhaust 01-04 6.6L Duramax DE-K5118A-Main 0.00 Diamond Eye 5" Turbo Direct Pipe Back Aluminized Single Outlet Exhaust 01-04 6.6L Duramax Diamond Eye Performance K5118A Diesel Power Products carries Diamond Eye 5" Aluminized Single with Quiet Tone Option 01-04 6.6L LB7 Duramax K5118A MBRP Smokers Stack Bed Kit - Universal UT1001 / UT2001 MBRP-UT2001-main 0.00 MBRP Smokers Stack Bed Kit - Universal UT1001 / UT2001 MBRP Exhaust UT2001 Diesel Power Products carries the MBRP Smokers Stack Bed Kit - Universal UT1001 / UT2001

The 2001-2004 6.6L LB7 GM Duramax's came factory equipped with a 3.5" turbo back aluminized exhaust with a catalytic converter and muffler. While this system is reasonably adequate for stock to mildly powered trucks, a larger diameter system or higher flow system from Diamond Eye, FLO~PRO, Magnaflow, MBRP, or Silverline is mandatory on any Duramax equipped with even mild upgrades, or for those towing heavy loads. And of course, there are other benefits to adding an exhaust kit besides purely functional, aftermarket kits not only sound good, but they look even better, especially with a nice tip to finish it off. 

We offer several different configurations for your new exhaust kit. We offer a cat back system, for those looking for a simple installation with great sound, as well as a turbo direct pipe back that eliminates the catalytic converter, considered an "off-road" kit. For those looking to also replace the factory flattened out turbo direct pipe, we offer several high flow units that are sold separately from the exhaust kits. And for those looking for something even more unique, try out a set of exhaust stacks by MBRP. Imagine a set of 6" Bullhauler turnout stacks protruding from the bed! And you wouldn't believe the shuddering sound they produce, either!
As always, if you have any questions about which exhaust 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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