We Value Your Business

Choose Category

Choose Brand

Customer Service

Hours of Operation

Monday-Friday
8am to 5pm PST


By Phone

Toll Free: 888-623-4373

Local: 714-848-2170


By Fax

Fax: 714-841-5752


By Email

Sales: sales@ocdiesel.com

Service: service@ocdiesel.com

Returns: returns@ocdiesel.com

Specials

You are here: Home > by Vehicle > 11-16 GM 6.6L Duramax LML > Exhaust Systems > Exhaust Parts

We found 83 results matching your criteria.

Exhaust Parts for your 11-15 GM 6.6L Duramax LML

Shop Exhaust Parts for your 11-15 GM 6.6L Duramax LML at Unbeatable Prices - Fast & Free Shipping - Expert Service on Exhaust Parts - Buy from OC DIESEL Today!

Welcome to the leading Diesel Exhaust Parts Components distributor. OC DIESEL is the number one source for providing diesel performance parts at low prices. Buy now and receive excellent customer service and fast shipping on your Diesel Exhaust System Components purchase. Also, have peace of mind that you're getting the lowest possible price, with our Price beat Guarantee + $10 . . . good for 30 days after your purchase!

OC DIESEL offers a wide selection of Diesel Exhaust Parts & Components for most diesel truck, motorhome, and RV owners. Experience the benefits of increased horsepower and towing performance with our Diesel Exhaust Parts selection. Whether your diesel is used for recreation, heavy towing, daily driving, drag racing, sled pulling, or mud bogging the addition of our parts can help improve overall performance.

Use our easy online check out and purchase your Diesel Exhaust Parts now or call us at (714) 848-2170 for more information.

our most popular products...
Sort By:
1 2
Silverline Saddle Clamp 3.5" - AS 312C Silverline Saddle Clamp 4" - AS 4C Silverline 3.5" to 4" T409 SS Exhaust Adapter Kit - AS DCK1 Silverline 4" to 4" T409 SS Exhaust Adapter Kit - AS DCK2

Dodge | GM | Ford

Dodge | GM | Ford

Dodge | GM | Ford
4"OD x 3.5"ID x 6"Length

Dodge | GM | Ford
4"OD x 4"ID x 6"Length
Silverline 4" to 4" T409 SS Single Exhaust Adapter - AS DCK3 Silverline 3.5" to 4" T409 Single Exhaust Adapter - AS DCK4 Silverline 4" T409 Polished SS Exhaust Pipe - AS SP48 Silverline 4" T304 Stainless Steel Muffler - AS UDM1

Dodge | GM | Ford
(4"OD x 4"ID x 6"Length)

Dodge | GM | Ford
(4"OD x 3.5"ID x 6"Length)

Dodge | GM | Ford
4" OD x 4" ID x 48" Long

Dodge | GM | Ford
4" OD x 4" ID x 30" Long
Silverline 4" T304 Stainless Steel Muffler - AS UDM1409 aFe Power 49-91002 MACH Force-Xp 4" Muffler 409 Stainless Steel for 4" Exhaust Systems aFe Power 49-91004 ATLAS 4" Muffler Delete Pipe 409 Stainless Steel for 4" Exhaust Systems aFe Power 49-91012 MACH Force-Xp 4" Muffler 409 Stainless Steel for 5" Exhaust Systems

Dodge | GM | Ford
4" OD x 4" ID x 30" Long
Key Features:
  • 4" Inlet and Outlet
  • 30" Overall Length
  • 8" Body Diameter

4" Exhaust Systems
Key Features:
  • 4" Inlet and Outlet
  • 30" Overall Length
  • Fits Most 4" Exhaust Systems

4" Exhaust Systems
Key Features:
  • 5" Inlet and Outlet
  • 30" Overall Length
  • 8" Body Diameter

5" Exhaust Systems
MBRP M1004 4" Stainless T304 Quiet Tone Muffler MBRP M1004A 4" Aluminized Quiet Tone Muffler MBRP M1004S 4" Stainless T409 Quiet Tone Muffler MBRP M1031 4" Stainless T304 Muffler
Key Features:
  • 4" Inlet/Outlet
  • 30" Overall Length
  • 24" Muffler Body/ 6" Body Diameter
Key Features:
  • 4" Inlet/Outlet
  • 30" Overall Length
  • 24" Muffler Body/ 6" Body Diameter
Key Features:
  • 4" Inlet/Outlet
  • 30" Overall Length
  • 24" Muffler Body/ 6" Body Diameter
Key Features:
  • 4" Inlet/Outlet
  • 30" Overall Length
  • 24" Muffler Body/ 6" Body Diameter
MBRP M2029 4" Aluminized Muffler MBRP M2029BLK 4" Black Coated Aluminized Muffler MBRP M2050 5" Aluminized Muffler MBRP M2050BLK 5" Black Coated Aluminized Muffler
Key Features:
  • 4" Inlet/Outlet
  • 30" Overall Length
  • 24" Muffler Body/ 6" Body Diameter
Key Features:
  • 4" Inlet/Outlet
  • 30" Overall Length
  • 24" Muffler Body/ 6" Body Diameter
Key Features:
  • 5" Inlet/Outlet
  • 31" Overall Length
  • 24" Muffler Body/ 6" Body Diameter
Key Features:
  • 5" Inlet/Outlet
  • 31" Overall Length
  • 24" Muffler Body/ 6" Body Diameter
MBRP M91031 4" Stainless T409 Muffler MBRP MDA30 4" Aluminized Muffler Delete Pipe MBRP MDA531 5" Aluminized Muffler Delete Pipe MBRP MDDAL27 4" Aluminized Dual Muffler Delete Pipe
Key Features:
  • 4" Inlet/Outlet
  • 30" Overall Length
  • 24" Muffler Body/ 6" Body Diameter
Key Features:
  • 4" Inlet/Outlet
  • 30" Overall Length
Key Features:
  • 5" Inlet/Outlet
  • 31" Overall Length
Key Features:
  • 4" Inlet/Outlet
  • 27.5" Overall Length
MBRP MDDS927 4" Stainless T409 Dual Muffler Delete Pipe MBRP MDS30 4" Stainless T304 Dual Muffler Delete Pipe MBRP MDS36 4" Stainless T304 Dual Muffler Delete Pipe MBRP MDS930 4" Stainless T409 Muffler Delete Pipe
Key Features:
  • 4" Inlet/Outlet
  • 27.5" Overall Length
Key Features:
  • 4" Inlet/Outlet
  • 30" Overall Length
Key Features:
  • 4" Inlet/Outlet
  • 36" Overall Length
Key Features:
  • 4" Inlet/Outlet
  • 30" Overall Length
MBRP MDS9531 5" Stainless T409 Muffler Delete Pipe MBRP R1009 4" Stainless T304 Resonator MBRP R2009 4" Aluminized Resonator MBRP UA1007 Stainless T409 Exhaust Pipe Adapter, 3.5 to 4 Inch
Key Features:
  • 5" Inlet/Outlet
  • 31" Overall Length
Key Features:
  • 4" Inlet/Outlet
  • 18" Overall Length
  • 12" Muffler Body/ 6" Body Diameter
Key Features:
  • 4" Inlet/Outlet
  • 18" Overall Length
  • 12" Muffler Body/ 6" Body Diameter
Key Features:
  • 3.5" Inlet to 4" Outlet
MBRP UA2001 Aluminized Exhaust Pipe Adapter, 4 to 5 Inch MBRP UA2003 Aluminized Exhaust Pipe Adapter, 3.5 to 5 Inch MBRP UA2004 Aluminized Exhaust Pipe Adapter, 4 to 5 Inch MBRP UA2005 Aluminized Exhaust Pipe Adapter, 3.5 to 5 Inch
Key Features:
  • 4" Inlet to 5" Outlet
Key Features:
  • 3.5" Inlet to 5" Outlet
Key Features:
  • 4" Inlet to 5" Outlet
Key Features:
  • 3.5" Inlet to 5" Outlet
MBRP UA2007 Aluminized Exhaust Pipe Adapter, 3.5 to 4 Inch MBRP GP015 30" Aluminized High Flow Muffler MBRP GP016 4" Aluminized Muffler Delete Pipe MBRP R1011 2.25" Stainless T304 Resonator
Key Features:
  • 3.5" Inlet to 4" Outlet
Key Features:
  • 4" Inlet/Outlet
  • 30" Overall Length
  • 24" Muffler Body/ 6" Body Diameter
Key Features:
  • 4" Inlet/Outlet
  • 30" Overall Length
Key Features:
  • 2.25" Inlet/Outlet
  • 20" Overall Length
  • 16" Muffler Body/ 4" Body Diameter
MBRP R1012 2.5" Stainless T304 Resonator MBRP R1013 3" Stainless T304 Resonator MBRP R1015 2.25" Stainless T304 Resonator MBRP R1016 2.5" Stainless T304 Resonator
Key Features:
  • 2.5" Inlet/Outlet
  • 20" Overall Length
  • 16" Muffler Body/ 4" Body Diameter
Key Features:
  • 3" Inlet/Outlet
  • 20" Overall Length
  • 16" Muffler Body/ 4" Body Diameter
Key Features:
  • 2.25" Inlet/Outlet
  • 26" Overall Length
  • 22" Muffler Body/ 4" Body Diameter
Key Features:
  • 2.5" Inlet/Outlet
  • 26" Overall Length
  • 22" Muffler Body/ 4" Body Diameter
MBRP R1017 3" Stainless T304 Resonator MBRP UA9001 Stainless T409 Exhaust Pipe Adapter, 4 to 5 Inch MBRP UA9003 Stainless T409 Exhaust Pipe Adapter, 3.5 to 5 Inch MBRP UA9004 Stainless T409 Exhaust Pipe Adapter, 4 to 5 Inch
Key Features:
  • 3" Inlet/Outlet
  • 26" Overall Length
  • 22" Muffler Body/ 4" Body Diameter
Key Features:
  • 4" Inlet to 5" Outlet
  • 7" Length
Key Features:
  • 3.5" Inlet to 5" Outlet
Key Features:
  • 4" Inlet to 5" Outlet
  • 7" Length
MBRP UA9005 Stainless T409 Exhaust Pipe Adapter, 3.5 to 5 Inch aFe Power 49-04021 ATLAS 4" Aluminized Race Pipe for 2011-2016 GM 6.6L Duramax LML aFe Power 49-04022 ATLAS 4" Aluminized Race Pipe for 2011-2016 GM 6.6L Duramax LML aFe Power 49-44027 MACH Force-Xp 4" 409 Stainless Steel Race Pipe for 2011-2016 GM 6.6L Duramax LML
Key Features:
  • 3.5" Inlet to 5" Outlet
  • 7" Length
Key Features:
  • Not CARB Legal
  • Uses Factory Mounting Locations
  • Increases Horsepower and Torque
  • Lowers EGT's
  • Aluminized Steel

2011-2016 GM 6.6L Duramax LML
2015 Only Includes Early Models with Non-Flanged Downpipes
Key Features:
  • Not CARB Legal
  • Uses Factory Mounting Locations
  • Increases Horsepower and Torque
  • Lowers EGT's
  • Aluminized Steel

2011-2016 GM 6.6L Duramax LML
Key Features:
  • Not CARB Legal
  • Uses Factory Mounting Locations
  • Increases Horsepower and Torque
  • Lowers EGT's
  • 409 Stainless Steel

2011-2016 GM 6.6L Duramax LML
aFe Power 49-44028 MACH Force-Xp 4" 409 Stainless Steel Race Pipe for 2011-2015 GM 6.6L Duramax LML MBRP GM8427 3" Black Coated Aluminized Turbo Down Pipe for 2011-2015 GM 6.6L Duramax LML MagnaFlow 12770 7" Round Body Muffler MagnaFlow 12771 7" Round Body Muffler
Key Features:
  • Not CARB Legal
  • Uses Factory Mounting Locations
  • Increases Horsepower and Torque
  • Lowers EGT's
  • 409 Stainless Steel

2011-2015 GM 6.6L Duramax LML
2015 Only Includes Early Models with Non-Flanged Downpipes
Key Features:
  • Performance Improvement

2011-2015 GM 6.6L Duramax LML
Key Features:
  • 4" Inlet/Outlet
  • 20" Overall Length
  • 14" Muffler Body/7" Body Diameter
  • Satin Finish
Key Features:
  • 4" Inlet/Outlet
  • 27" Overall Length
  • 20" Muffler Body/7" Body Diameter
  • Satin Finish
MagnaFlow 12772 7" Round Body Muffler MagnaFlow 12773 7" Round Body Muffler MagnaFlow 12774 7" Round Body Muffler MagnaFlow 14770 7" Round Body Muffler
Key Features:
  • 4" Inlet/Outlet
  • 30" Overall Length
  • 24" Muffler Body/7" Body Diameter
  • Satin Finish
Key Features:
  • 4" Inlet/Outlet
  • 36" Overall Length
  • 30" Muffler Body/7" Body Diameter
  • Satin Finish
Key Features:
  • 5" Inlet/Outlet
  • 30" Overall Length
  • 24" Muffler Body/7" Body Diameter
  • Satin Finish
Key Features:
  • 4" Inlet/Outlet
  • 20" Overall Length
  • 14" Muffler Body/7" Body Diameter
  • Polished Finish
MagnaFlow 14771 7" Round Body Muffler MagnaFlow 14772 7" Round Body Muffler MagnaFlow 14773 7" Round Body Muffler MagnaFlow 14774 7" Round Body Muffler
Key Features:
  • 4" Inlet/Outlet
  • 27" Overall Length
  • 20" Muffler Body/7" Body Diameter
  • Polished Finish
Key Features:
  • 4" Inlet/Outlet
  • 30" Overall Length
  • 24" Muffler Body/7" Body Diameter
  • Polished Finish
Key Features:
  • 4" Inlet/Outlet
  • 36" Overall Length
  • 30" Muffler Body/7" Body Diameter
  • Polished Finish
Key Features:
  • 5" Inlet/Outlet
  • 30" Overall Length
  • 24" Muffler Body/7" Body Diameter
  • Polished Finish
MBRP GM8428 3" Black Coated Aluminized Down Pipe for 2015-2016 GM 6.6L Duramax LML MBRP GMCA427 3" Black Coated Aluminized Turbo Down Pipe for 2011-2015 GM 6.6L Duramax LML MBRP M2220A 5" Aluminized Quiet Tone Muffler MBRP M2220S 5" Stainless T409 Quiet Tone Muffler
Key Features:
  • Performance Improvement

2015-2016 GM 6.6L Duramax LML
Key Features:
  • CARB EO#: D-763

2011-2015 GM 6.6L Duramax LML
Key Features:
  • 5" Inlet/Outlet
  • 31" Overall Length
  • 25" Muffler Body/ 8" Body Diameter
Key Features:
  • 5" Inlet/Outlet
  • 31" Overall Length
  • 25" Muffler Body/ 8" Body Diameter
MagnaFlow 16409 4" Pipe Adaptor Kit MagnaFlow 60011 4" Diesel Catalytic Converter MagnaFlow 60012 5" Diesel Catalytic Converter MagnaFlow 60021 4" Diesel Catalytic Converter
Key Features:
  • 3.5" to 4" Adapters
  • Includes Necessary Clamps
Key Features:
  • 4" Inlet/Outlet
  • 12" Length, 6" Width
  • Cutting and Welding Required
Key Features:
  • 5" Inlet/Outlet
  • 12" Length, 6" Width
  • Cutting and Welding Required
Key Features:
  • 4" Inlet/Outlet
  • 11" Length, 6" Width
  • Cutting and Welding Required
aFe Power 49-04055 ATLAS 4" Aluminized Race Pipe for 2015.5-2016 GM 6.6L Duramax LML aFe Power 49-04066 ATLAS 4" Aluminized Race Pipe for 2011-2015 GM 6.6L Duramax LML aFe Power 49-04067 ATLAS 4" Aluminized Race Pipe for 2015.5-2016 GM 6.6L Duramax LML aFe Power 49-44055 MACH Force-Xp 4" 409 Stainless Steel Race Pipe for 2015.5-2016 GM 6.6L Duramax LML
Key Features:
  • Not CARB Legal
  • Uses Factory Mounting Locations
  • Increases Horsepower and Torque
  • Lowers EGT's
  • Aluminized Steel

2015.5-2016 GM 6.6L Duramax LML
Key Features:
  • Not CARB Legal
  • Uses Factory Mounting Locations
  • Increases Horsepower and Torque
  • Lowers EGT's
  • Aluminized Steel

2011-2015 GM 6.6L Duramax LML
2015 Only Includes Early Models with Non-Flanged Downpipes
133.7 " to 167.7" wheel bases only
Key Features:
  • Not CARB Legal
  • Uses Factory Mounting Locations
  • Increases Horsepower and Torque
  • Lowers EGT's
  • Aluminized Steel

2015.5-2016 GM 6.6L Duramax LML
2015 Only Includes Late Models with Flanged Downpipes
133.7 " to 167.7" wheel bases only
Key Features:
  • Not CARB Legal
  • Uses Factory Mounting Locations
  • Increases Horsepower and Torque
  • Lowers EGT's
  • 409 Stainless Steel

2015.5-2016 GM 6.6L Duramax LML
2015 Only Includes Late Models with Flanged Downpipes
133.7 " to 167.7" wheel bases only
aFe Power 49-44066 Large Bore-HD 4" 409 Stainless Steel Race Pipe for 2011-2015 GM 6.6L Duramax LML aFe Power 49-44067 Large Bore-HD 4" 409 Stainless Steel Race Pipe for 2015.5-2016 GM 6.6L Duramax LML aFe Power 49-84017 MACH Force-Xp 4" Race Pipe Sensor Plugs GM DPF for 2007.5-2016 GM 6.6L Cummins aFe Power 49-91003 ATLAS 4" Muffler Delete Pipe Aluminized for 4" Exhaust Systems
Key Features:
  • Not CARB Legal
  • Uses Factory Mounting Locations
  • Increases Horsepower and Torque
  • Lowers EGT's
  • 409 Stainless Steel

2011-2015 GM 6.6L Duramax LML
2015 Only Includes Early Models with Non-Flanged Downpipes
133.7 " to 167.7" wheel bases only
Key Features:
  • Not CARB Legal
  • Uses Factory Mounting Locations
  • Increases Horsepower and Torque
  • Lowers EGT's
  • 409 Stainless Steel

2015.5-2016 GM 6.6L Duramax LML
2015 Only Includes Late Models with Flanged Downpipes
133.7 " to 167.7" wheel bases only
Key Features:
  • All Necessary Pieces to Plug the DPF
  • Two M16 x 1.5m O2 Plugs
  • Two M14 x 1.5M Temperature Sensor Plugs

2007.5-2016 GM 6.6L Cummins
Key Features:
  • 4" Inlet and Outlet
  • 30" Overall Length
  • Fits Most 4" Exhaust Systems

4" Exhaust Systems
   
 
1 2