2018 GMC Sierra 3500 HD Exhaust System Kits

Essential 2018 GMC Sierra 3500 HD Exhaust System Kits

Dorman – Exhaust Manifold Repair Clamp (Part No.917-108)

Exhaust Manifold Repair Clamp

from

$31.99
This exhaust manifold to cylinder head repair clamp is designed to match the fit and function of the original clamp on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Saves time – When an exhaust manifold fastener breaks, this exhaust manifold repair clamp saves time by creating a seal without needing to extract the broken stud
  • Location-specific – engineered to fit the exhaust manifold center on specified GM and Hummer vehicles
  • Complete kit – includes clamp and fasteners for a thorough, secure repair
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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Felpro – EXHAUST MANIFOLD BOLT SET (Part No.ES 75120)

EXHAUST MANIFOLD BOLT SET

from

$24.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Designed and manufactured to meet the needs of the exhaust system repair environment.
  • Verified, tested and certified proprietary Organic coating resists corrosion.
  • Tightly controlled coefficient of friction ensures reliable installation.
  • Application specific kit contents
  • Self-locking nuts (where applicable).
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Dorman – Help – Exhaust Manifold Hardware Kit (Part No.03413B)

Exhaust Manifold Hardware Kit

from

$17.99
This exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles, and is made from quality materials for reliable performance.

Product Features:
  • Direct replacement – this exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles
  • Ideal solution – this kit is a reliable replacement for the original hardware that is missing or damaged, or has failed
  • Durable construction – this kit is made from quality components to ensure reliable performance and a long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Help – Exhaust Manifold Hardware Kit – M8-1.25 Stainless Steel (Part No.03413HP)

Exhaust Manifold Hardware Kit - M8-1.25 Stainless Steel

from

$28.99
This exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles, and is made from quality materials for reliable performance.

Product Features:
  • Upgraded hardware – this set of twelve M8-1.25 x 30mm exhaust manifold mounting bolts are 100 percent stainless steel for superior heat and corrosion resistance
  • Convenient solution – kit contains all the application-specific hardware necessary to install one exhaust manifold
  • Matches fit – this hardware matches the fit and function of the factory fasteners, while offering superior durability
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Exhaust Manifold Clamp Repair (Part No.917-142)

Exhaust Manifold Clamp Repair

from

$47.99
This exhaust manifold to cylinder head repair clamp is designed to match the fit and function of the original clamp on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Saves time – When an exhaust manifold fastener breaks, this exhaust manifold repair clamp saves time by creating a seal without needing to extract the broken stud
  • Location-specific – engineered to fit the exhaust manifold on the front left or rear right on specified GM and Isuzu vehicles
  • Complete kit – includes clamp and fasteners for a thorough, secure repair
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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Dorman – Exhaust Manifold Clamp Repair (Part No.917-107)

Exhaust Manifold Clamp Repair

from

$51.99
This exhaust manifold to cylinder head repair clamp is designed to match the fit and function of the original clamp on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Saves time – When an exhaust manifold fastener breaks, this exhaust manifold repair clamp saves time by creating a seal without needing to extract the broken stud
  • Location-specific – engineered to fit the exhaust manifold on specified GM and Isuzu vehicles on the front right on vehicles without EGR valve, or rear left
  • Complete kit – includes clamp and fasteners for a thorough, secure repair
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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MBRP Exhaust – Aluminized Steel, 4"Dia Pipe, Single Exhaust With Side Exit, 5"Round Ss Tip (Part No.S6032AL)

Aluminized Steel, 4"Dia Pipe, Single Exhaust With Side Exit, 5"Round Ss Tip

from

$374.99
Made of 100 Percent heavy Gauge aluminized steel our Installer Series is designed to provide the cost conscious consumer with the same high quality design and craftsmanship as our other systems, but at a value price. Installer Series is suitable for areas with moderate environmental conditions. A performance exhaust system is much like a musical instrument. Quality engineering is important, hundreds of test Miles and hundreds of Hours are invested into every system to guarantee you the greatest sound. Durability and performance available from any exhaust system anywhere, and also provided with the free exhaust tip with this Installer Series.

Product Features:
  • The Lowest Bend Degree Angles And Smooth Mandrel Bends Mean That Exhaust Gases Have An Easier Path To The Tip, Move Faster And Reduce Exhaust Gas Temperatures
  • Vehicle Maintains Optimal Operating Temperatures
  • Fits Right The First Time. Rigorous Testing Procedures Ensure That Every Component Will Fit As Expected
  • Each Kit Is Designed To Fit As Many Configurations Of The Same Vehicle As Possible
  • Made Of 100 Percent Heavy Gauge Aluminized Steel
  • Designed To Provide The Cost Conscious Consumer With The Same High Quality Design And Craftsmanship
  • Easy, Bolt-On Design, Makes Easy To Install
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MBRP Exhaust – Pro Series, 4 In Cat Back System: Polished Tip, 304 Stainless Steel, Designed for Power and Sound (Part No.S5093304)

Pro Series, 4 In Cat Back System: Polished Tip, 304 Stainless Steel, Designed for Power and Sound

from

$982.99
PRO Series is the best performance exhaust system that money can buy. It is a series designed and built for the serious enthusiast who will settle for nothing less. Constructed from T304 stainless steel it delivers you optimal durability that keeps on looking its best. Easy to clean and maintain this is the product of choice for owners of lifted vehicles, show trucks or who operate in severe environments.

Product Features:
  • 4 Inch Cat Back Single Side Exit (Street Version) Exhaust System
  • 4 Inch Mandrel Bent Tubing
  • Moderate Sound Level
  • Bolt On, No Weld Design Makes Installation A No Hassle One And A Half To Two Hour Project
  • Limited Lifetime Warranty
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aFe POWER – ATLAS DPF Back Exhaust System: Black Tip, Aluminized Steel, Unleashes All Available HP (Part No.49-04081-B)

ATLAS DPF Back Exhaust System: Black Tip, Aluminized Steel, Unleashes All Available HP

from

$645.99
Interested in a new exhaust system for your LML Duramax? Check out the ATLAS DPF-Back exhaust system by aFe. This system is constructed from 5″ mandrel-bent aluminized steel tubing and uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations to provide a quick, hassle-free installation. Also included in this exhaust system is a massive 6″ diameter, wrinkle-black powder-coated 304 stainless steel tip with a laser-cut stainless steel aFe power badge. ATLAS exhaust systems are the perfect combination of performance, fit and value. Simple Installation: All systems use factory mounting locations providing stability and hassle-free installation. Leak-Free Seal: High quality band clamps are included for a complete 360 degree sealing surface. OE Fit: OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time. Flow and Performance: This ATLAS exhaust system is constructed of 5″ mandrel-bent aluminized steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT’s. 6″ Diameter Black Intercooled Tip: Finishing off the exhaust is a 6″ diameter, black, stainless steel slash cut tip with intercooling vents designed to reduce exhaust gas temperatures at the tailpipe. A unique stainless steel laser-cut aFe Power logo plate is riveted on for an aggressive style.

Product Features:
  • Mandrel Bent Tubing For Maximum Flow
  • Utilizes Factory Mounting Locations
  • Quick Hassle Free Installation
  • Massive Intercooled Tip w/Laser Cut aFe Power Badge
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MBRP Exhaust – Aluminized Steel, With Muffler, 4" Pipe Dia, Single Exhaust With Single Exit (Part No.S6004AL)

Aluminized Steel, With Muffler, 4" Pipe Dia, Single Exhaust With Single Exit

from

$632.99
Made of 100 Percent heavy Gauge aluminized steel our Installer Series is designed to provide the cost conscious consumer with the same high quality design and craftsmanship as our other systems, but at a value price. Installer Series is suitable for areas with moderate environmental conditions. A performance exhaust system is much like a musical instrument. Quality engineering is important, hundreds of test Miles and hundreds of Hours are invested into every system to guarantee you the greatest sound. Durability and performance available from any exhaust system anywhere, and also provided with the free exhaust tip with this Installer Series.

Product Features:
  • The Lowest Bend Degree Angles And Smooth Mandrel Bends Mean That Exhaust Gases Have An Easier Path To The Tip, Move Faster And Reduce Exhaust Gas Temperatures
  • Vehicle Maintains Optimal Operating Temperatures
  • Fits Right The First Time. Rigorous Testing Procedures Ensure That Every Component Will Fit As Expected
  • Each Kit Is Designed To Fit As Many Configurations Of The Same Vehicle As Possible
  • Made Of 100 Percent Heavy Gauge Aluminized Steel
  • Designed To Provide The Cost Conscious Consumer With The Same High Quality Design And Craftsmanship
  • Easy, Bolt-On Design, Makes Easy To Install
See More

aFe POWER – ATLAS DPF Back Exhaust System: Black Tip, Aluminized Steel, Unleashes All Available HP (Part No.49-04041-B)

ATLAS DPF Back Exhaust System: Black Tip, Aluminized Steel, Unleashes All Available HP

from

$645.99
Interested in a new exhaust system? Check out the ATLAS DPF-Back exhaust system by aFe. This system is constructed from 5 in. mandrel-bent aluminized steel tubing. Smooth transition bends allow for low turbulence, increasing horsepower, toque and lowering EGTs. Uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations to provide a quick, hassle-free installation. Also included in this exhaust system is a massive 7 in. wrinkle-black powder-coated tip with a laser-cut stainless steel aFe power badge. Tip features a drain port on the bottom to keep rust and corrosion away. ATLAS exhaust systems are the perfect combination of performance, fit and value. High quality OE-style flange and band clamps are used for a complete 360 degree sealing surface. All aFe systems are engineered and manufactured in our Corona, California manufacturing facility.

Product Features:
  • 5 in. Aluminized Steel Tubing
  • 7 in. Wrinkle Black Powder Coated Tip w/Laser Cut Age Badge
  • OE Style Flanges
  • High Quality Band Clamps
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MBRP Exhaust – Ss, Without Muffler, 4" Pipe Diameter, Single Exhaust With Single Exit (Part No.S6004SLM)

Ss, Without Muffler, 4" Pipe Diameter, Single Exhaust With Single Exit

from

$627.99
Built from 16 Gauge T409 stainless steel our SLM Series performance exhaust systems offer a value price without compromising on the quality built into every component. Featuring a two piece tail we replaced the muffler with an MBRP muffler delete pipe to provide you with the ultimate in free flow exhaust. Constructed to the same specifications as our top of the line Pro Series we back this line with a 5 Year Warranty.

Product Features:
  • Built From 16 Gauge T409 Stainless Steel
  • More Pulling Power, Improved Throttle Response And Greater Fuel Efficiency
  • Bolt-On, No Weld Design
  • Bolt-On, No Weld Design Makes Installation A No Hassle One
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aFe POWER – Large Bore-HD DPF Back Exhaust System: Polished Tip, 409 Stainless Steel, Unleashes All Avail. HP (Part No.49-44081-P)

Large Bore-HD DPF Back Exhaust System: Polished Tip, 409 Stainless Steel, Unleashes All Avail. HP

from

$645.99
Interested in a new exhaust system for your LML Duramax? Check out the Large Bore-HD DPF-Back exhaust system by aFe. This system is constructed from 5″ mandrel-bent 409 stainless steel tubing and uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations to provide a quick, hassle-free installation. Also included in this exhaust system is a massive 6″ wrinkle-black powder-coated 304 stainless steel tip with a laser-cut stainless steel aFe power badge. Large Bore-HD exhaust systems are the perfect combination of performance, fit and value. Simple Installation: All systems use factory mounting locations providing stability and hassle-free installation. Leak-Free Seal: High quality band clamps are included for a complete 360 degree sealing surface. OE Fit: OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time. Flow and Performance: This Large Bore-HD exhaust system is constructed of 5″ mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT’s. 6″ Diameter Polished Intercooled Tip: Finishing off the exhaust is a 6″ diameter, high luster polished, stainless steel slash cut tip with intercooling vents designed to reduce exhaust gas temperatures at the tailpipe. A unique stainless steel laser-cut aFe Power logo plate is riveted on for an aggressive style.

Product Features:
  • Mandrel Bent Tubing For Maximum Flow
  • Hassle Free Installation
  • High Quality Band Clamps For Leak-Free Seal
  • Smooth Transition Bends Allows For Low Turbulence
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aFe POWER – Large Bore-HD DPF Back Exhaust System: Black Tip, 409 Stainless Steel, Unleashes All Available HP (Part No.49-44085-B)

Large Bore-HD DPF Back Exhaust System: Black Tip, 409 Stainless Steel, Unleashes All Available HP

from

$585.99
Simple Installation: All systems use factory mounting locations providing stability and hassle-free installation. Leak-Free Seal: High quality band clamps are included for a complete 360 degree sealing surface. OE Fit: OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time. Flow and Performance: This Large Bore-HD exhaust system is constructed of 5″ mandrel-bent 409 stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT’s. 6″ Diameter Black Intercooled Tip: Finishing off the exhaust is a 6″ diameter, black, stainless steel slash cut tip with intercooling vents designed to reduce exhaust gas temperatures at the tailpipe. A unique stainless steel laser-cut aFe Power logo plate is riveted on for an aggressive style.

Product Features:
  • Mandrel Bent 409 Stainless Steel Tubing
  • High Quality Band Clamps
  • OE Style Bayonet Hangers
  • Factory Mounting Locations
See More

aFe POWER – ATLAS DPF Back Exhaust System: Black Tip, Aluminized Steel, Unleashes All Available HP (Part No.49-04086-B)

ATLAS DPF Back Exhaust System: Black Tip, Aluminized Steel, Unleashes All Available HP

from

$865.99
Interested in a new exhaust system for your L5P Duramax? Check out the ATLAS dual DPF-Back exhaust system by aFe. This system is constructed from 4″ mandrel-bent aluminized steel tubing and uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations and comes with a bolt-on bracket that supports the driver side tailpipe. This provides for a quick, hassle-free installation with no modification necessary. Also included in this exhaust system are dual massive 6″ polished 304 stainless steel tips with laser-cut stainless steel aFe power badges. ATLAS exhaust systems are the perfect combination of performance, fit and value. Single To Dual Exhaust Conversion: This exhaust is designed to convert the standard single exhaust into an aggressive dual exhaust. Fits With Spare Tire: This exhaust system fits perfectly without relocating the spare tire. OE Fit: OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE style fit that does not change with time. Flow and Performance: This ATLAS exhaust system is constructed of 4″ mandrel-bent aluminized steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT’s. Dual Massive 6″ Black Tips: Finishing off the exhaust are dual powder-coated high temp black 304 stainless steel exhaust tips. This tip features a laser-cut stainless steel aFe power badge for an aggressive style.

Product Features:
  • Mandrel Bent Aluminized Steel Tubing
  • High Quality Band Clamp
  • OE Style Bayonet Hangers For Secure Fitment
  • Factory Mounting Locations
See More

aFe POWER – Large Bore-HD DPF Back Exhaust System: Polished Tip, 409 Stainless Steel, Unleashes All Avail. HP (Part No.49-44040-P)

Large Bore-HD DPF Back Exhaust System: Polished Tip, 409 Stainless Steel, Unleashes All Avail. HP

from

$645.99
Engineered to perform in the most extreme environments. Constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque and lower EGTS. All systems use factory mounting locations providing stability and hassle free installation. High quality OE style flange and band clamps are used for a complete 360 deg. sealing surface. A free flowing 24 in. long muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque out of your rig. OE style bayonet hangers are used to maintain a stable pipe locations during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE style fit that does not change with time.

Product Features:
  • 5 in. 409 Stainless Steel Tubing
  • 7 in. Polished Tips w/Laser Cut Age Badge
  • Increased Flow And Performance
  • High Quality Band Clamps
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aFe POWER – Rebel XD Series DPF Back Exhaust System: Polished Tip, 409 Stainless Steel, Unleashes All Avail. HP (Part No.49-44089-P)

Rebel XD Series DPF Back Exhaust System: Polished Tip, 409 Stainless Steel, Unleashes All Avail. HP

from

$865.99
Simple Installation: All systems use factory mounting locations providing stability and hassle-free installation. Leak-Free Seal: High quality band clamps are included for a complete 360 degree sealing surface. OE Fit: OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time. Flow and Performance This exhaust system is constructed of 4″ mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT’s. 5″ Diameter Polished Intercooled Tips: Finishing off the exhaust are 5″ diameter, polished, stainless steel straight cut tips with intercooling vents designed to reduce exhaust gas temperatures at the tailpipe. A unique stainless steel laser-cut aFe Power logo plate is riveted on for an aggressive style. **Cutting stock exhaust is required.

Product Features:
  • Mandrel Bent Stainless Steel Tubing
  • High Quality Band Clamp
  • OE Style Bayonet Hangers For Secure Fitment
  • Factory Mounting Locations For A Quick Hassle Free Installation
See More

MBRP Exhaust – Aluminized Steel, With Muffler, 4" Pipe Diameter, Single Exhaust With Single Ext (Part No.S6004P)

Aluminized Steel, With Muffler, 4" Pipe Diameter, Single Exhaust With Single Ext

from

$581.99
Designed to provide maximum performance and maximum value our Performance Series features 100 Percent aluminized steel at a no nonsense price. These systems are designed to provide the MBRP performance and sound you have grown to love to those who are operating on a tight budget. Featuring a two piece tail pipe and bolt-on hangers these systems fit and perform just like our more expensive series at a price point that cannot be beaten. A performance exhaust system is much like a musical instrument. Quality engineering is important, hundreds of test Miles and hundreds of Hours are invested into every system to guarantee you the greatest sound. Durability and performance available from any exhaust system anywhere.

Product Features:
  • The Lowest Bend Degree Angles And Smooth Mandrel Bends Mean That Exhaust Gases Have An Easier Path To The Tip, Move Faster And Reduce Exhaust Gas Temperatures
  • Vehicle Maintains Optimal Operating Temperatures
  • Fits Right The First Time. Rigorous Testing Procedures Ensure That Every Component Will Fit As Expected
  • Each Kit Is Designed To Fit As Many Configurations Of The Same Vehicle As Possible
  • 100 Percent Aluminized Steel
  • Features A Two Piece Tail Pipe And Bolt-On Hangers
  • Easy, Bolt-On Design, Makes Easy To Install
See More

aFe POWER – Large Bore-HD DPF Back Exhaust System: Polished Tip, 409 Stainless Steel, Unleashes All Avail. HP (Part No.49-44004)

Large Bore-HD DPF Back Exhaust System: Polished Tip, 409 Stainless Steel, Unleashes All Avail. HP

from

$481.99
Engineered to perform in the most extreme environments. Constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque and lower EGTS. All systems use factory mounting locations providing stability and hassle free installation. High quality OE style flange and band clamps are used for a complete 360 deg. sealing surface. A free flowing 24 in. long muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque out of your rig. OE style bayonet hangers are used to maintain a stable pipe locations during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE style fit that does not change with time.

Product Features:
  • 4 in. Mandrel Bent 409 Stainless Steel Tubing
  • DPF/CAT-Delete
  • No Bungs
  • Includes Flange
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aFe POWER – ATLAS DPF Back Exhaust System: Polished Tip, Aluminized Steel, Unleashes All Available HP (Part No.49-04040-P)

ATLAS DPF Back Exhaust System: Polished Tip, Aluminized Steel, Unleashes All Available HP

from

$585.99
Interested in a new exhaust system. Check out the ATLAS DPF-Back Exhaust system form aFe. This system is constructed from 5 in. mandrel-bent aluminized steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs. Uses high quality band clamps and OE-style bayonet hangers. Uses all factory mounting locations to provide a quick, hassle-free installation. Includes a massive 6 in. polished 304 stainless tip with a laser-cut stainless steel aFe power badge. Tip features a drain port on the bottom to keep rust and corrosion away. High quality OE-style flange and band clamps are used for a complete 360 degree sealing surface. All aFe exhaust systems are engineered and manufactured in our Corona, California manufacturing facility.

Product Features:
  • 5 in. Aluminized Steel Tubing
  • 7 in. Polished Tip w/Laser Cut Age Badge
  • OE Style Flanges
  • High Quality Band Clamps
See More

aFe POWER – ATLAS DPF Back Exhaust System: No Tip, Aluminized Steel, Unleashes All Available HP (Part No.49-04040)

ATLAS DPF Back Exhaust System: No Tip, Aluminized Steel, Unleashes All Available HP

from

$414.99
Interested in a new exhaust system? Check out the ATLAS DPF-Back exhaust system by aFe. This system is constructed from 5 in. mandrel-bent aluminized steel tubing. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs. Uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations to provide a quick, hassle-free installation. ATLAS exhaust systems are the perfect combination of performance, fit and value. All aFe exhaust systems are engineered and manufactured in out Corona, California manufacturing facility.

Product Features:
  • 5 in. Aluminized Steel Tubing
  • Increased Flow And Performance
  • High Quality Band Clamps
  • Bayonet OE Style/Welded-On Hangers
See More

aFe POWER – ATLAS DPF Back Exhaust System: Polished Tip, Aluminized Steel, Unleashes All Available HP (Part No.49-04086-P)

ATLAS DPF Back Exhaust System: Polished Tip, Aluminized Steel, Unleashes All Available HP

from

$785.99
Interested in a new exhaust system for your L5P Duramax? Check out the ATLAS dual DPF-Back exhaust system by aFe. This system is constructed from 4″ mandrel-bent aluminized steel tubing and uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations and comes with a bolt-on bracket that supports the driver side tailpipe. This provides for a quick, hassle-free installation with no modification necessary. Also included in this exhaust system are dual massive 6″ polished 304 stainless steel tips with laser-cut stainless steel aFe power badges. ATLAS exhaust systems are the perfect combination of performance, fit and value. Single To Dual Exhaust Conversion: This exhaust is designed to convert the standard single exhaust into an aggressive dual exhaust. Fits With Spare Tire: This exhaust system fits perfectly without relocating the spare tire. OE Fit: OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE style fit that does not change with time. Flow and Performance: This ATLAS exhaust system is constructed of 4″ mandrel-bent aluminized steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT’s. Polished Tips: Finishing off the exhaust are dual high luster, polished 304 stainless steel slash-cut tips. This tip features a laser-cut stainless steel aFe power badge for an aggressive style.

Product Features:
  • Mandrel Bent Aluminized Steel Tubing
  • High Quality Band Clamp
  • OE Style Bayonet Hangers For Secure Fitment
  • Factory Mounting Locations
See More

aFe POWER – Large Bore-HD DPF Back Exhaust System: No Tip, 409 Stainless Steel, Unleashes All Available HP (Part No.49-44041)

Large Bore-HD DPF Back Exhaust System: No Tip, 409 Stainless Steel, Unleashes All Available HP

from

$585.99
Engineered to perform in the most extreme environments. Constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque and lower EGTS. All systems use factory mounting locations providing stability and hassle free installation. High quality OE style flange and band clamps are used for a complete 360 deg. sealing surface. A free flowing 24 in. long muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque out of your rig. OE style bayonet hangers are used to maintain a stable pipe locations during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE style fit that does not change with time.

Product Features:
  • 5 in. 409 Stainless Steel Tubing
  • Increased Flow And Performance
  • High Quality Band Clamps
  • Bayonet OE Style/Welded-On Hangers
See More

aFe POWER – ATLAS DPF Back Exhaust System: No Tip, Aluminized Steel, Unleashes All Available HP (Part No.49-04041)

ATLAS DPF Back Exhaust System: No Tip, Aluminized Steel, Unleashes All Available HP

from

$414.99
Interested in a new exhaust system? Check out the ATLAS DPF-Back exhaust system by aFe. This system is constructed from 5 in. mandrel-bent aluminized steel tubing. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs. Uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations to provide a quick, hassle-free installation. ATLAS exhaust systems are the perfect combination of performance, fit and value. All aFe exhaust systems are engineered and manufactured in out Corona, California manufacturing facility.

Product Features:
  • 5 in. Aluminized Steel Tubing
  • Increased Flow And Performance
  • High Quality Band Clamps
  • Bayonet OE Style/Welded-On Hangers
See More

MBRP Exhaust – Installer Series, 4 In Cat Back System: Polished Tip, Aluminized Steel, Designed for Power and Sound (Part No.S5093AL)

Installer Series, 4 In Cat Back System: Polished Tip, Aluminized Steel, Designed for Power and Sound

from

$553.99
Built to Perform MBRPs performance exhaust systems are built to perform. Designed to maximize exhaust flow and minimize exhaust temperatures your vehicle. Every system we sell has been built to the most exacting standards in the industry.

Product Features:
  • Aluminized Stainless Steel
  • Moderate Sound Level
  • 4 Inch Mandrel Bent Tubing
  • 4 Inch Cat Back Single Side Exit (Street Version) Exhaust System
  • Limited 3 Year Warranty
See More

aFe POWER – ATLAS DPF Back Exhaust System: Polished Tip, Aluminized Steel, Unleashes All Available HP (Part No.49-04081-P)

ATLAS DPF Back Exhaust System: Polished Tip, Aluminized Steel, Unleashes All Available HP

from

$585.99
Interested in a new exhaust system for your LML Duramax? Check out the ATLAS DPF-Back exhaust system by aFe. This system is constructed from 5″ mandrel-bent aluminized steel tubing and uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations to provide a quick, hassle-free installation. Also included in this exhaust system is a massive 6″ diameter, polished 304 stainless steel tip with a laser-cut stainless steel aFe power badge. ATLAS exhaust systems are the perfect combination of performance, fit and value. Simple Installation: All systems use factory mounting locations providing stability and hassle-free installation. Leak-Free Seal: High quality band clamps are included for a complete 360 degree sealing surface. OE Fit: OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE style fit that does not change with time. Flow and Performance: This ATLAS exhaust system is constructed of 5″ mandrel-bent aluminized steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT’s. 6″ Diameter Polished Intercooled Tip: Finishing off the exhaust is a 6″ diameter, high luster polished, stainless steel slash cut tip with intercooling vents designed to reduce exhaust gas temperatures at the tailpipe. A unique stainless steel laser-cut aFe Power logo plate is riveted on for an aggressive style.

Product Features:
  • Mandrel Bent Tubing For Maximum Flow
  • Utilizes Factory Mounting Locations
  • Quick Hassle Free Installation
  • Massive Intercooled Tip w/Laser Cut aFe Power Badge
See More

MagnaFlow – Pro Series Filter-Back Performance Exhaust System (Part No.17870)

Pro Series Filter-Back Performance Exhaust System

from

$839.99
The MagnaFlow PRO DPF Series 17870 utilizes it’s weight-optimized, durable, corrosion resistant stainless steel design to enhance your truck with MagnaFlow¿s signature sound and dyno-tested performance. 17870¿s 5in. diameter mandrel bent main piping features a muffler delete and terminates in a Single Passenger Side Rear exit with 6in. Polished Welded-Single Wall-Angle Cut-Rolled Edge-Intercooled tips. This emissions-legal filter-back exhaust kit has been tuned to create Mild interior and Moderate exterior sound levels. Exhaust system 17870 is emissions-legal and produced using CNC precision robotic manufacturing techniques that result in a direct-fit design that you can install yourself, all backed by MagnaFlow¿s limited lifetime warranty.

Product Features:
  • Throaty, powerful performance sound Magnaflow is famous for
  • Attention grabbing design thanks to an aggressive style
  • Intercooled tips
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MBRP Exhaust – Aluminized Steel, Without Muffler, 4" Pipe Dia, Single Exhaust With Single Exit (Part No.S6004PLM)

Aluminized Steel, Without Muffler, 4" Pipe Dia, Single Exhaust With Single Exit

from

$513.99
Designed to provide maximum performance and maximum value our Performance Series features 100 Percent aluminized steel at a no nonsense price. These systems are designed to provide the MBRP performance and sound you have grown to love to those who are operating on a tight budget. Featuring a two piece tail pipe and bolt-on hangers these systems fit and perform just like our more expensive series at a price point that cannot be beaten. A performance exhaust system is much like a musical instrument. Quality engineering is important, hundreds of test Miles and hundreds of Hours are invested into every system to guarantee you the greatest sound. Durability and performance available from any exhaust system anywhere.

Product Features:
  • The Lowest Bend Degree Angles And Smooth Mandrel Bends Mean That Exhaust Gases Have An Easier Path To The Tip, Move Faster And Reduce Exhaust Gas Temperatures
  • Vehicle Maintains Optimal Operating Temperatures
  • Fits Right The First Time. Rigorous Testing Procedures Ensure That Every Component Will Fit As Expected
  • Each Kit Is Designed To Fit As Many Configurations Of The Same Vehicle As Possible
  • 100 Percent Aluminized Steel
  • Features A Two Piece Tail Pipe And Bolt-On Hangers
  • Easy, Bolt-On Design, Makes Easy To Install
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2018 GMC Sierra 3500 HD Exhaust System Kits

Maybe you’re in the middle of a full rebuild of that 2018 GMC Sierra 3500 HD. Maybe you just need a couple of Exhaust System Kits. Either way, Advance Auto Parts has 10 different Exhaust System Kits in our inventory ranging from $17.99 to $865.99. That means you can find the exact parts or products you need to keep that 2018 GMC Sierra 3500 HD running smoothly.

Exhaust System Kits are only as good as their brand. We stock 5 different brands to make sure you have plenty of trusted parts to choose from for your 2018 GMC Sierra 3500 HD. Dorman, Felpro, and MBRP Exhaust are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Exhaust System Kits for your 2018 GMC Sierra 3500 HD, but don’t take our word for it – read our customer ratings and reviews and buy with confidence.

So if you’re in the market for aftermarket Exhaust System Kits to keep your 2018 GMC Sierra 3500 HD rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Exhaust System Kits Brands To Make Your 2018 GMC Sierra 3500 HD Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 2018 GMC Sierra 3500 HD demands trusted brand parts and products to keep it running. Many trusted brands of Exhaust System Kits make up Advance Auto Parts’ inventory, and all are ready to help make your Sierra 3500 HD the best it can be. Be sure to browse some of our top Exhaust System Kits brands and parts.

Popular Dorman – Help Exhaust System Kits

We carry Dorman – Help parts in our stock across Exhaust Manifold Hardware Kits categories, plus more. For a 2018 GMC Sierra 3500 HD, our most popular Dorman – Help Exhaust System Kits include:
Exhaust Manifold Hardware Kit
from $17.99
(17)
Exhaust Manifold Hardware Kit
Exhaust Manifold Hardware Kits
Exhaust Manifold Clamp Repair
from $47.99
(3)
Exhaust Manifold Clamp Repair
Exhaust Manifold Hardware Kits

FAQs for 2018 GMC Sierra 3500 HD Exhaust System Kits

What are the most purchased Exhaust System Kits for the 2018 GMC Sierra 3500 HD?

Out of 10 Exhaust System Kits for the 2018 GMC Sierra 3500 HD, the most popular in our inventory are:
EXHAUST MANIFOLD BOLT SET
from $24.99
This product is not rated
EXHAUST MANIFOLD BOLT SET
Exhaust Manifold Hardware Kits
Exhaust Manifold Hardware Kit - M8-1.25 Stainless Steel
from $28.99
This product is not rated
Exhaust Manifold Hardware Kit – M8-1.25 Stainless Steel
Exhaust Manifold Hardware Kits
Aluminized Steel, 4"Dia Pipe, Single Exhaust With Side Exit, 5"Round Ss Tip
from $374.99
This product is not rated
Aluminized Steel, 4"Dia Pipe, Single Exhaust With Side Exit, 5"Round Ss Tip
Exhaust System Kits