2018 GMC Yukon XL Exhaust Parts

BORLA(R) Cat-Back(TM) And Axle-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA(R) Sound of Power respected by motoring enthusiasts everywhere.

Product Features:

• Built From Premium T-304 Austenitic Stainless Steel, Superior To T-400 Series Knockoffs, To Give You The Absolute Best In Performance And Durability
• Straight-Through And Multi-Core Technology To Unleash Hidden Horsepower
• Increased Exhaust Velocity Adds Power, Driving Excitement, Fuel Economy, And The Distinctive Sound Of Power Respected By Motoring Enthusiasts Everywhere
• This System Features A Bright Chrome On T-304 Stainless Steel Tip
• Ultra-Smooth Mandrel Bends Ensure Maximum Flow And Power, And Precision Computer-Controlled CNC Manufacturing Ensures An Accurate Fit

ARMOR PRO Series exhaust systems are crafted out of T304 Stainless Steel – the most durable material grade that money can buy. The T304 Stainless Steel tubing is easy to clean and maintain. it is the obvious choice for you if you operate your vehicle in extreme conditions. 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:

• T304 Stainless Steel Construction
• T304 Stainless Steel Tubing Is Easy To Clean And Maintain
• Comes With 4 Inch OD Tip

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 52617. 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. Designed to fit the 2015-2020 GMC Yukon, 2015-2020 Cadillac Escalade, and more, this direct-fit catalytic converter also interchanges with OE parts 19420284 and 23111625, among others. 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 Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

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 EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51659. The Universal design allows the part to fit a wide array of vehicles (cutting and welding required), and the stainless steel construction of this spun body catalytic converter is highly resistant to corrosion. The single laser fusion weld of the spun body greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:

• Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
• Compact, lightweight construction enables installation in confined areas, welding is required.
• Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.

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

Designed to fit, perform and sound like the original system, Walker® resonators use precise tuning technologies to deliver excellent flow characteristics and OE-style sound.

Product Features:

• EASY TO INSTALL — Meticulous pipe routing and OE-style hardware, flanges, and brackets for fast, easy installation
• RESISTS CORROSION — Durable aluminized steel construction and helps reduce corrosion
• FACTORY SOUND — OE-style louvered tubes (where applicable) help reduce radiated noise for factory-style sound quality
• STRONG AND DURABLE — Features thick OE-style flanges, hardware and brackets for strength
• GET MORE MILES FROM YOUR RESONATOR ASSEMBLY — Engineered to fit, perform and sound like the original system

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

Complete your exhaust repair with an Exhaust Mate® U-bolt clamp. Designed to ensure a tight, leak-resistant connection, Exhaust Mate hardware is manufactured from durable and robust material for long service life.

Product Features:

• CONNECTS EXHAUST PARTS — Provides secure, leak-resistant connection
• AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
• PREMIUM MATERIALS – Made from quality material for durability and long life
• BETTER TOGETHER — Use Walker® accessories when installing catalytic converters and mufflers for a complete exhaust system upgrade

Complete your exhaust repair with a Walker® MEGA preformed band clamp. Designed to ensure a tight connection and inhibit leaks, Walker hardware is manufactured from durable and robust material for long service life.

Product Features:

• SUPERIOR SEAL — Provides superior 360° clamping and sealing on muffler inlets, outlets, elbow joints and pipe
• AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for your vehicle repair needs
• PREMIUM MATERIALS – Made from a variety of materials including low-carbon steel or stainless steel for durability and long life
• BETTER TOGETHER — Use Walker® accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade

Our Exhaust Manifold Hardware Kit comes with the necessary installation components to assist you in replacing your manifold. Save time and energy by having the right hardware on hand when you need it.

Product Features:

• Direct replacement for a proper fit every time
• Durable steel construction
• Repair kit helps to secure exhaust manifold to the vehicle engine head
• Manufactured to strict engineering quality standards

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┬« gaskets and flanges. Available in a variety of styles and sizes, they’re designed to work with OE exhaust components and Walker aftermarket replacement parts.

Product Features:

• AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizesfora quality vehicle repair
• HEAT RESISTANT — Designed to resist heat for long-lasting performance
• PREMIUM MATERIALS — Made from high-quality materials for durability and long life
• ENGINEERING EXPERTISE — Parts are reviewed and validated and approved by Walker engineers through rigorous research and development
• REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
• EASIER TO INSTALL — Featuring slotted bolt holes (where applicable) for easy installation, gasket slips into place
• BETTER TOGETHER — Use premium Walker-½ accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade

The new Twisted Steel performance header from aFe Power is redefining the header industry with new pulse control technology. aFe engineers have designed this header using optimum tube lengths and mitered collectors for maximum flow and velocity for power delivery across the entire power band. Combine with a large 1/2″ thick head flange and 14-gauge 409 stainless steel tubing, you have a header that is strong and powerful. Twisted Steel headers are 100-percent bolt-on with no modifications necessary and are proudly engineered and built in Corona, CA.

Product Features:

• No Cutting Or Drilling Required
• Formed Collectors
• Heavy Duty Flanges

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

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

Exhaust Manifold Gas

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

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

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

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