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Exhaust Kits | 2011-2016 GM 6.6 Duramax LML

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. 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 MBRP Black Series 4" DPF Back Exhaust System 11-19 6.6L GM Duramax LML / L5P MBRP-S6032BLK 37.00 MBRP Black Series 4" DPF Back Exhaust System 11-19 6.6L GM Duramax LML / L5P MBRP Exhaust S6032BLK Get the sound and styleyou're after, in MBRP's new Black Series Exhaust for your LML or L5P! MBRP 4" DPF Back Dual Outlet Single Side Exhaust System 11-19 6.6L GM Duramax LML / L5P MBRP-S6033AL-main 0.00 MBRP 4" DPF Back Dual Outlet Single Side Exhaust System 11-19 6.6L GM Duramax LML / L5P MBRP Exhaust S6033AL Mount up an MBRP Dual Outlet exhaust on your LML or L5P for increased sound, performance, and styling! Magnaflow 17065 Black Series 4" DPF Back Dual Outlet Exhaust System 07.5-19 6.6L MF-17065 35.00 Magnaflow 17065 Black Series 4" DPF Back Dual Outlet Exhaust System 07.5-19 6.6L MagnaFlow Exhaust 17065 Featuring the same superior 100% stainless steel construction that Magnaflow is well known for, this 4" Dual Black Series delivers a twist with its high temperature satin black finish for your Duramax LML or L5P.

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, and Silverline.
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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