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2011-16 6.6L LML GM Duramax Exhaust Kits

With the release of the LML Duramax in 2011 model year applications came an entirely new exhaust system for GM. This factory system starts out at 3.5" diameter out of the turbo and features a catalyti ... read more

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MBRP Smokers 4" Single Stack Bed Kit - Universal UT4001 / UT3001 MBRP-UT4001-Main 0.00 MBRP Smokers 4" Single Stack Bed Kit - Universal UT4001 / UT3001 MBRP Exhaust UT4001 Diesel Power Products carries the MBRP Single Stack Bed Kit - Universal UT4001 / UT3001 Banks Monster Exhaust 11-14 6.6L LML GM Duramax CC/SB-LB & EC/SB-LB BAN-47786-main 0.00 Banks Monster Exhaust 11-14 6.6L LML GM Duramax CC/SB-LB & EC/SB-LB Banks Power 47786 Looking to cool down your 11-14 6.6L LML Duramax? This Monster Exhaust® system from Banks Power offers upto 100 degrees of cooling! MBRP 5" DPF-Back Single Exhaust System 11-19 6.6L GM Duramax LML / L5P MBRP-S60360-Main 0.00 MBRP 5" DPF-Back Single Exhaust System 11-19 6.6L GM Duramax LML / L5P MBRP Exhaust S60360AL This 5" MBRP DPF-Back Exhaust will look great, sound great and reduce backpressure on the turbo to lower EGT temperatures. MBRP 4" DPF-Back Installer Series Single Exhaust System 11-19 6.6L LML / L5P GM Duramax MBRP-S6032AL 38.00 MBRP 4" DPF-Back Installer Series Single Exhaust System 11-19 6.6L LML / L5P GM Duramax MBRP Exhaust S6032AL This 4" MBRP DPF-Back Exhaust will look great, sound great and reduce backpressure on the turbo to lower EGT temperatures. MBRP 4" DPF-Back "Cool Duals" Exhaust 11-15 6.6L GM LML Duramax MBRP-S6034AL 62.00 MBRP 4" DPF-Back "Cool Duals" Exhaust 11-15 6.6L GM LML Duramax MBRP Exhaust S6034AL This 4" MBRP DPF-Back Dual Exhaust will look great, sound great and reduce backpressure on the turbo to lower EGT temperatures. Diamond Eye 4" DPF Back Exhaust 11-15 LML Duramax DE-K4156-Main 0.00 Diamond Eye 4" DPF Back Exhaust 11-15 LML Duramax Diamond Eye Performance K4156A Diesel Power Products carries the Diamond Eye 4" DPF Back Exhaust for 11-15 LML Duramax Diamond Eye 5" DPF Back Exhaust 11-15 LML 6.6L GM Duramax DE-K5162-Main 0.00 Diamond Eye 5" DPF Back Exhaust 11-15 LML 6.6L GM Duramax Diamond Eye Performance K5162A Diesel Power Products carries Diamond Eye 5" DPF Back Exhaust for 11-15 LML 6.6L GM Duramax AFE ATLAS 5" Aluminized DPF Back Exhaust 11-16 6.6L LML GM Duramax AFE-49-04041-Main 0.00 AFE ATLAS 5" Aluminized DPF Back Exhaust 11-16 6.6L LML GM Duramax AFE 49-04041 Power Products carries the AFE 5" DPF Back Atlas Series Exhaust for 11-16 6.6L LML GM Duramax AFE MACH Force XP 5" Stainless DPF Back Exhaust 11-16 LML GM Duramax AFE-49-44041-Main 0.00 AFE MACH Force XP 5" Stainless DPF Back Exhaust 11-16 LML GM Duramax AFE 49-44041 Power Products carries the AFE 5" DPF Back Mach Force XP Series Exhaust for 11-15 LML GM Duramax Diamond Eye 4" DPF Back Turn Down Exhaust Kit 11-15 LML Duramax DE-K4156A-TD-main 0.00 Diamond Eye 4" DPF Back Turn Down Exhaust Kit 11-15 LML Duramax Diamond Eye Performance K4156A-TD Power Products carries the Diamond Eye 4" DPF Back Turn Down Exhaust Kit for 11-15 LML Duramax Grand Rock Build Your Own Cab Back Complete Dual Stack Kit GR-DPU-4SK-Main 0.00 Grand Rock Build Your Own Cab Back Complete Dual Stack Kit Grand Rock DPU-4SK Get everything you need to install a Grand Rock Dual Stack kit onto your truck! Grand Rock Build Your Own Cab Back Complete Single Stack Kit GR-SPU-4SK-Main 0.00 Grand Rock Build Your Own Cab Back Complete Single Stack Kit Grand Rock SPU-4SK Get everything you need to install a Grand Rock Single Stack kit onto your truck!

With the release of the LML Duramax in 2011 model year applications came an entirely new exhaust system for GM. This factory system starts out at 3.5" diameter out of the turbo and features a catalytic converter, followed by a DOC (Diesel Oxidation Catalyst), a DPF (Diesel Particulate Filter), and a DEF (Diesel Emissions Fluid) system. Once the exhaust exits the last emissions device, the diameter is enlarged to a 4" diameter. The previous LMM engines featured a similar exhaust system, but without the addition of the DEF, which is designed to further aid in the emissions cleaning process. If you're looking to improve upon the power and efficiency of your Duramax, we can help you upgrade your exhaust with a higher flowing 4" or 5" system built from aluminized or stainless steel in single or dual outlet, or even stacks! We carry exhaust systems from AFE, FLO~PRO, Diamond Eye, MBRP, Magnaflow, Silverline, and Grand Rock.
You can either search by manufacturer by selecting one of the categories, or view our complete selection below. If you’re having trouble determining the best route for your exhaust system or components, feel free to give us a call or send an e-mail to [email protected] and we’d be happy to steer you in the right direction.

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