2013 GMC Sierra 3500 HD Exhaust Parts

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5451644. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed to fit the 2007-2010 Chevrolet Silverado 2500 HD, 2007-2010 GMC Sierra 2500 HD, and additional vehicles. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:

• Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
• Simplifies installation with essential gaskets and hardware being included in the box.
• Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.

Certain original equipment exhaust manifolds warp and crack due to lower-grade iron construction. This Dorman OE FIX replacement is made of high-grade ductile iron that better handles heat and stress for greater durability.

Product Features:

• Upgraded materials – this replacement exhaust manifold is constructed of ductile iron to prevent future warping and cracking
• Complete kit – includes new manifold, manifold gasket, 2 flange gaskets, 3 studs, 3 nuts
• Direct fit – reverse engineered from original equipment for seamless installation
• Quality engineering – designed and tested in the United States

This exhaust clamp is designed to match the function of the original equipment clamp on specified vehicles. Manufactured from quality materials for reliability, it is engineered to help ensure secure connections between exhaust system components.

Product Features:

• Direct replacement – this exhaust clamp is designed to match the function of the original equipment clamp on specified vehicles
• Ideal solution – engineered to help ensure secure connections between exhaust system components
• Durable construction – designed and manufactured to strict specifications for reliable performance
• Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

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

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:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered for the sealing repair environment
• Unsurpassed quality you can trust
• Validated for fit, form, and function

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:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered for the sealing repair environment
• Unsurpassed quality you can trust
• Validated for fit, form, and function

Complete your exhaust repair with Walker® insulators. Available in a variety of styles and sizes, they’re designed to work with Walker aftermarket replacement parts for quick and easy installation.

Product Features:

• OE DESIGN — Designed with OE-style features for easy installation and fit
• PREMIUM MATERIALS — Made from high-quality materials for durability and long life
• AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
• KEEPS EXHAUST PARTS IN PLACE — Designed to support undercar exhaust components
• BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade

This exhaust gas temperature (EGT) sensor bung repair kit is designed to match the original components required to repair the sensor bung on specified vehicles. Made of quality components, this kit is engineered for reliable performance and durability.

Product Features:

• Cost-effective fix – this EGT sensor bung repair kit allows direct replacement of only a failed bung, rather than an entire exhaust pipe
• Weld-on plate – bung comes with steel plate for repairing pipe if damaged during bung removal
• Application specific – designed for a wide range of vehicle years, makes and models
• This part has undergone vehicle try-on testing for conformance to product standards and quality

Exhaust Clamp

Made from aluminized steel for durability, Walker® premium pipe is manufactured with precision benders and fixture checked to ensure a precise fit for quick and easy installation.

Product Features:

• RESISTS CORROSION — Durable aluminized steel construction for corrosion resistance and performance
• EASY TO INSTALL — Manufactured with precision bends and OE-style routings, hangers and connectors for easy installation (where applicable)
• OE-STYLE PERFORMANCE — Direct-fit design is fixture checked to ensure a precise fit that performs like original equipment
• BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
• AVAILABLE IN DIFFERENT SIZES — Offered in a variety of lengths and diameters and features the appropriate Inlet Diameter (I.D.) – Outlet Diameter (O.D.) connection; see product specifications for more information

Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.

Product Features:

• Direct replacement for a proper fit every time
• Durable steel construction
• New hardware helps fix exhaust leaks
• Also available in the Exhaust Manifold Hardware Kit

This exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles. Made of quality materials, this hardware is engineered for reliable performance.

Product Features:

• Upgraded hardware – this set of six M10-1.5 exhaust manifold mounting studs and nuts are 100 percent stainless steel for superior heat and corrosion resistance
• Convenient solution – kit contains all the application-specific hardware necessary to join one exhaust manifold to one manifold flange
• 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

Designed to deliver superior flow and OE-style sound, Walker® Quiet-Flow® mufflers are available for top-selling domestic and foreign vehicles.

Product Features:

• EASY TO INSTALL — Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and/or welding
• RESISTS CORROSION — Internal drainage system helps reduce moisture collection
• BUILT TO LAST — Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
• PREMIUM ACOUSTIC CONTROL — OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
• DESIGN VALIDATED — Acoustic and flow tested for quality OE-style sound you can count on

The only broad-market muffler with 100% stainless-steel construction, Walker® Quiet-Flow® SS mufflers feature precision fit, superior flow and OE-style sound. Quiet-Flow SS mufflers are available for most domestic and import vehicles.

Product Features:

• CORROSION RESISTANT STAINLESS STEEL — The only broad-market muffler with 100% stainless-steel construction that delivers longer life versus aluminized mufflers while an internal drainage system reduces moisture collection
• EASY TO INSTALL — Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and/or welding
• BUILT TO LAST — Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
• PREMIUM ACOUSTIC CONTROL — OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
• DESIGN VALIDATED — Acoustic and flow tested for quality OE-style sound you can count on

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

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

High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:

• Designed to OE standards for ease of installation
• BWD is a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product

CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Made from aluminized steel for durability, Walker® premium pipe is manufactured with precision benders and fixture checked to ensure a precise fit for quick and easy installation.

Product Features:

• RESISTS CORROSION — Durable aluminized steel construction for corrosion resistance and performance
• EASY TO INSTALL — Manufactured with precision bends and OE-style routings, hangers and connectors for easy installation (where applicable)
• OE-STYLE PERFORMANCE — Direct-fit design is fixture checked to ensure a precise fit that performs like original equipment
• BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
• AVAILABLE IN DIFFERENT SIZES — Offered in a variety of lengths and diameters and features the appropriate Inlet Diameter (I.D.) – Outlet Diameter (O.D.) connection; see product specifications for more information

ARMOR LITE Series exhaust systems are a value option with the same fitment, performance and sound as the premium products from MBRP. Heavy-gauge Aluminized Steel tubing helps to resist dings and dents caused by debris under your vehicle. This material can be a great choice for you if you live in a dry climate that does not see much precipitation, or if you are looking for great sound on a budget. All of the tubing is mandrel bent for maximum exhaust flow. Mandrel bending ensures no rippling in the bends. The end result is that it gives you more fresh air inside your engine cylinders, allowing it to produce more power and improve vehicle performance and longevity.

Product Features:

• Heavy-Gauge Aluminized Steel Tubing Helps To Resist Dings And Dents Caused By Debris Under Vehicle
• Mandrel Bending Ensures No Rippling In The Bends
• Good Durability
• Easy To Install

Made from aluminized steel for durability, Walker® premium pipe is manufactured with precision benders and fixture checked to ensure a precise fit for quick and easy installation.

Product Features:

• RESISTS CORROSION — Durable aluminized steel construction for corrosion resistance and performance
• EASY TO INSTALL — Manufactured with precision bends and OE-style routings, hangers and connectors for easy installation (where applicable)
• OE-STYLE PERFORMANCE — Direct-fit design is fixture checked to ensure a precise fit that performs like original equipment
• BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
• AVAILABLE IN DIFFERENT SIZES — Offered in a variety of lengths and diameters and features the appropriate Inlet Diameter (I.D.) – Outlet Diameter (O.D.) connection; see product specifications for more information
• COMPATIBILITY — Ideal for weld or clamp installations

Headlock&trade: Bolts eliminate the need for lock washers, Period. That’s because each Headlock&trade: Bolt features 24 equally-spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface-eliminating the need for lock-washers.

Product Features:

• 12 per Package
• Includes Ball Head Socket Tool – to Start Header Bolt Into Head
• 410 stainless steel
• Minimum 180,000 PSI tensile strength
• 24 equally spaced clockwise teeth

Black oxide finished carbon steel header bolts have a compact hex head and the flange is ideal for use where space is minimal – your typical header flange. Includes twelve (12) M8 – 1.25 x 25mm header bolts.

Product Features:

• 12 per Package
• Fits GM LS Series Engines
• Black Oxide Finish Resists Corrosion

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

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:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered for the sealing repair environment
• Unsurpassed quality you can trust
• Validated for fit, form, and function
• Contains all gaskets and seals to remove and replace exhaust manifold
• Contains all gaskets and seals to remove and replace exhaust manifold

MAHLE gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:

• All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
• MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
• MAHLE gaskets is the leader in Domestic, Asian and European applications
• The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package

GM Genuine Parts Exhaust Manifold Gaskets are designed, engineered, and tested to rigorous standards, and are backed by General Motors. They help form a gas-tight connection between the exhaust manifold and cylinder heads. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:

• Helps prevent exhaust leaks
• Helps provide a tight seal where the exhaust manifold mounts to the engine block
• Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
• GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
• GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
• GM regularly updates production and service part designs to integrate new materials and technologies