2018 Chevrolet Impala Exhaust Parts

Name: Donut Exhaust Pipe Flange Gasket: Fiber with Steel, Heat Resistant, Premium Materials
Brand: Walker
SKU: 31500
Price: 2.49 USD

Below you will find various in-demand Chevrolet Exhaust Parts, components and accessories for your 2018 Impala. Advance Auto Parts has popular Impala parts like Exhaust Pipes, Exhaust Gaskets, Exhaust Hangers and more. You’ll also find aftermarket and OEM Exhaust Parts for other Impala model years including 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019, 2020 and more. Select a category of 2018 Chevrolet Impala Exhaust Parts below and start saving instantly.

Popular 2018 Chevrolet Impala Exhaust Parts Categories

Exhaust Manifold and Headers

Catalytic Converters

Exhaust Manifold and Header Hardware

Exhaust System Kits

Exhaust Hangers and Hardware

Exhaust Manifold Gaskets

Exhaust Pipe and Flange Gaskets

Essential Exhaust Parts for 2018 Chevrolet Impalas

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$2.49

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 sizes for a 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 accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade

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$11.99

AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a 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 accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade

from

$2.99

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:

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

from

$6.49

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

from

$9.99

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:

Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles.
Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
Durable construction – these parts are made from quality materials to ensure reliable performance and 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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$27.30

Dorman’s Exhaust Hanger installs easily to mount the exhaust to the vehicle. The Hanger is constructed from high-quality, heat-resistant materials for long-lasting durability.

Product Features:

Direct replacement for a proper fit
Replacement restores the exhaust to proper operation
Resilient against road and weather conditions that make the undercar environment a harsh one
Rigorous quality control measures have been undertaken to ensure that this part conforms to product standards

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$11.29

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

Product Features:

Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles.
Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
Durable construction – these parts are made from quality materials to ensure reliable performance and 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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$13.99

Complete your exhaust repair with Walker exhaust hangers. Designed with OE-style features to support undercar exhaust components, Walker hangers are manufactured from durable and robust material for long service life.

Product Features:

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

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$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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$40.99

ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:

Material Is Not Affected By Corrosion Or Extreme Heat
The Compact 12-Point Nut Lets You Easily Slip A Socket Close To The Pipe
Substantially Stronger Than Grade 8 Hardware
Nominally Rated At 170,000 Psi Tensile Strength
3/8″-16 Thread Size
1″ Underhead Length

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$89.99

Vibe-Lock Bolt

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$26.99

Material Is Not Affected By Corrosion Or Extreme Heat
The Compact 12 Point Nut Lets You Easily Slip A Socket Close To The Pipe
Substantially Stronger Than Grade 8 Hardware
Nominally Rated At 170,000 PSI Tensile Strength
0.75″ Underhead Length
Set of 12

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$1039.99

The MagnaFlow 1961-1964 Chevrolet Impala Street Series Crossmember-Back Performance Exhaust System 16724 brings enhanced engine sound and dyno-proven performance to your 3.8L, 4.6L, 5.3L, 5.4L, 5.7L, 6.7L, 7.0L 1961-1964 Chevrolet Impala with a healthy helping of our deep, resonant signature exhaust note at Moderate exterior and Mild interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this Chevrolet Impala exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features a crossmember-back layout designed to replace your Chevrolet Impala’s exhaust system from the crossmember on back. With its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit with 3in. Polished Welded-On Single Wall Angle Cut Rolled Edge tips, your muscle car will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 16724 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited lifetime construction warranty.

Product Features:

Dyno-proven performance
Durable corrosion-resistant stainless steel construction
CNC precision robotic manufacturing techniques

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$1241.99

The MagnaFlow 2014-2020 Chevrolet Impala Street Series Cat-Back Performance Exhaust System 19023 brings out the personality of your 3.6L 2014-2020 Chevrolet Impala with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 2.5in. main piping and 3 Straight-Through mufflers ending in a Dual Split Rear exit, this Chevrolet Impala exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Chevrolet Impala’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 19023 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 19023 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s 1-year limited finish warranty and limited lifetime construction warranty.

Product Features:

Dyno-proven performance
Durable corrosion-resistant stainless steel construction
CNC precision robotic manufacturing techniques

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$1067.99

The MagnaFlow 1965-1969 Chevrolet Impala Street Series Crossmember-Back Performance Exhaust System 15165 brings enhanced engine sound and dyno-proven performance to your 3.8L, 4.1L, 4.6L, 5.0L, 5.3L, 5.4L, 5.7L, 6.5L, 6.7L, 7.0L 1965-1969 Chevrolet Impala with a healthy helping of our deep, resonant signature exhaust note at Moderate exterior and Mild interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this Chevrolet Impala exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features a crossmember-back layout designed to replace your Chevrolet Impala’s exhaust system from the crossmember on back. With its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Multiple Exit Options exit with 2.5in. Polished Weld-On Single Wall Turndown Cut Edge tips, your muscle car will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15165 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited lifetime construction warranty.

Product Features:

Dyno-proven performance
Durable corrosion-resistant stainless steel construction
CNC precision robotic manufacturing techniques

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$465.99

Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.

Product Features:

CARB COMPLIANT — For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state┐s aftermarket converter regulations.
SUPERIOR TECHNOLOGY — Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)
CONSISTENT PERFORMANCE — Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
DURABLE — Features stainless-steel body with aluminized pipe and heat shields for durability
FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation

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$438.99

MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 418005 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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 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 CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.

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$817.99

CARB COMPLIANT — For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state┐s aftermarket converter regulations.
SUPERIOR TECHNOLOGY — Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)
CONSISTENT PERFORMANCE — Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
DURABLE — Features stainless-steel body with aluminized pipe and heat shields for durability
FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation

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$194.99

MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51206 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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.

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$642.99

Don’t give up looking for headers for your vehicle. Patriot offers headersfor many applications at prices you can afford. Built with surfacemachined thick steel flanges for a great seal andmandrel bent mild steel tubing. Patriot headers areavailable r

Product Features:

Patriot Exhaust H8024-1 1 7/8″ Header Chevrolet Chevelle Big Block Chevrolet 68-74 Coated
Patriot offers headers for many applications at prices you can afford.

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$362.99

Patriot Exhaust H8062 2″ Header Chevrolet Camaro Big Block Chevrolet 67-69 Raw
Patriot offers headers for many applications at prices you can afford.

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$258.99

Product Features:

Fuel Economy From The Engine
Leak Test For Max Performance
Mandrel-Formed Power Plenum
Leakproof O-Ringed Port Seals
Include All Mounting Hardware

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$107.99

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

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$10.49

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
Exhaust manifold gasket set contains all gaskets required.
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

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$23.29

Hooker’s precision-matched Super Competition header gaskets provide a sure fit and unmatched exhaust sealing. This OEM quality gasket is constructed of a thick ,.060 inch, high temperature, non-asbestos fiber laminate with a perforated steel core, which provides a superior grip and adhesion. This construction also contributes to exact fit compliance between the cylinder head and header flange, offering excellent sealing properties during extreme temperature and operating conditions.

Product Features:

Tear Resistant
Precisely Cut To Match Header

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$9.99

As you would expect, extremely high temperatures are the sealing challenge for exhaust manifold gaskets. Victor Reinz has a long heritage of supplying manifold gaskets to original equipment vehicle manufacturers. Therefore, Victor Reinz exhaust manifold gaskets meet OE specifications on a wide range of vehicles, covering the most recent high-tech engine designs and going back decades to the muscle car era.

Product Features:

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.

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$45.99

Manufactured from high-temperature steel core/graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate gasket failure. Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head. Conforms to and seals minor surface irregularities. High recovery material allows header or manifold flange to stay sealed if flange loses clamp-load. Can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track use.

Product Features:

Manufactured from high-temperature steel core/graphite faced exhaust material
Expanded steel core provides stability and maximum torque retention to eliminate gasket failure
Graphite impregnated facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head
Conforms to and seals minor surface irregularities
Can be trimmed if necessary for modified port applications
For OE replacement, high performance street, drag race and oval track use
Anti-Stick Properties
Easy Removal For Disassembly

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$32.99

Manufactured from high-temperature steel core/graphite faced exhaust material
Expanded steel core provides stability and maximum torque retention to eliminate gasket failure
Graphite impregnated facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head
Conforms to and seals minor surface irregularities
Can be trimmed if necessary for modified port applications
For OE replacement, high performance street, drag race and oval track use
Anti-Stick Properties
Easy Removal For Disassembly

Upgrade your 2018 Chevrolet Impala with Top-Quality Exhaust Parts

When it comes to maintaining or upgrading your 2018 Chevrolet Impala, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Chevrolet or enhancing its overall performance, Exhaust Parts are key to keeping your Impala functioning at its best. At Advance Auto Parts, we offer a wide selection of 19 Exhaust Parts for the 2018 Chevrolet Impala, designed to meet your needs without breaking the bank. From Exhaust Pipe replacements to Exhaust Gaskets upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Exhaust Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Exhaust Parts for your 2018 Chevrolet Impala at great prices. Our Exhaust Parts inventory for this model ranges from just $4.49 to $1,241.99, with an average price of $334.87. Our 19 Exhaust Parts in stock come from 4 trusted brands, so you’re sure to find the right part for your 2018 Chevrolet Impala without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2018 Chevrolet Impala, we stock popular OEM and aftermarket Exhaust Parts from top names like FELPRO, and more. FELPRO Exhaust Parts start at just $4.49 and boast an impressive 5 stars average rating from customers. With 6 customer reviews and counting, our 2018 Chevrolet Impala Exhaust Parts have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Exhaust Part upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 2018 Chevrolet Impala is always ready to roll. We’re committed to providing you with everything you need to keep your Impala in top shape, all in one place. Start shopping confidently below for your 2018 Chevrolet Impala!

Best-Selling Exhaust Pipes for 2018 Chevrolet Impalas

Enhance the driving experience in your Chevrolet with 3 quality Exhaust Pipe components, starting at $4.49.

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$6.29

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

from

$4.49

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

from

$16.29

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

Top Picks for 2018 Chevrolet Impala Exhaust Hangers

Upgrade Chevrolet Impalas with top-quality Exhaust Hangers parts, including 1 OEM and aftermarket selections for your 2018 model.

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from

$27.30

Direct replacement for a proper fit
Replacement restores the exhaust to proper operation
Resilient against road and weather conditions that make the undercar environment a harsh one
Rigorous quality control measures have been undertaken to ensure that this part conforms to product standards

In-Demand Catalytic Converters for 2018 Chevrolet Impalas

Select from 10 premium Catalytic Converters parts for your 2018 Chevrolet Impala, with prices ranging from $194.99 to $781.99.

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$194.99

MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51205 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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.

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$561.99

This catalytic converter with integrated exhaust manifold – a.k.a. manifold converter – is precision-engineered to match the original equipment on specific vehicle years, makes and models for a reliable replacement.

Product Features:

Direct replacement – this manifold converter is designed to match the fit and performance of the original equipment on specific vehicles.
Convenient kit – includes gaskets and downpipe hardware to simplify installation.
Durable construction -manufactured within strict tolerances for reliable longevity
Trustworthy value – backed by team of engineers and quality control experts in the United States

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$781.99

MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 52417 helps keep the check engine light off. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. Designed to fit the 2014-2020 Chevrolet Impala, 2013-2019 Cadillac XTS, and more, this direct-fit catalytic converter also interchanges with OE parts 19420103 and 19420281, among others. Hardware is included to eliminate the hassle of working with corroded factory parts. 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.

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$715.99

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 52001. 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 2014-2020 Chevrolet Impala, 2010-2015 Buick LaCrosse, and more, this direct-fit catalytic converter also interchanges with OE parts 19419593 and 20894010, among others. Hardware is included to eliminate the hassle of working with corroded factory parts. 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.

from

$575.99

Designed to comply with EPA standards while delivering premium performance with assured compliance, Walker Ultra Direct-Fit Catalytic Converters provide premium performance and are available for import and domestic OBDII (1996 and newer) vehicles.

Product Features:

EPA COMPLIANT — For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA, CO & NY. Legal in ME on EPA Federal Emission Equipped Vehicles only. Consult your state’s aftermarket converter regulations for details.
DIRECT-FIT DESIGN — Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn¿t require specialized fabrication and/or welding
DIRECT-FIT DESIGNá–áDirect-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installationáthatádoesn┐t require specialized fabricationáand/or welding
KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES — OE-style high-technology washcoat and optimal precious metal load delivers required reduction in tailpipe emissions to match vehicle application
KEEPS CHECK ENGINE LIGHT OFFáFOR EMISSIONS CODESá–áOE-style high-technologyáwashcoatáand optimaláprecious metal load delivers required reduction in tailpipe emissionsáto match vehicle application
STRONG AND DURABLE — Features thick OE-style flanges, hangers and brackets for strength and durability
STRONGáANDáDURABLEá–áFeatures thick OE-style flanges, hangersáandábrackets for strength andádurability
OE-STYLE DESIGN — Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
OE-STYLE DESIGNá–áFeatures aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter

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$566.99

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 52594. 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 2014-2020 Chevrolet Impala, 2012-2015 Buick LaCrosse, and more, this direct-fit catalytic converter also interchanges with OE parts 20926628 and 20965398, among others. Hardware is included to eliminate the hassle of working with corroded factory parts. 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.

from

$519.99

EPA COMPLIANT — For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA, CO & NY. Legal in ME on EPA Federal Emission Equipped Vehicles only. Consult your state’s aftermarket converter regulations for details.
DIRECT-FIT DESIGN — Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn¿t require specialized fabrication and/or welding
DIRECT-FIT DESIGNá–áDirect-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installationáthatádoesn┐t require specialized fabricationáand/or welding
KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES — OE-style high-technology washcoat and optimal precious metal load delivers required reduction in tailpipe emissions to match vehicle application
KEEPS CHECK ENGINE LIGHT OFFáFOR EMISSIONS CODESá–áOE-style high-technologyáwashcoatáand optimaláprecious metal load delivers required reduction in tailpipe emissionsáto match vehicle application
STRONG AND DURABLE — Features thick OE-style flanges, hangers and brackets for strength and durability
STRONGáANDáDURABLEá–áFeatures thick OE-style flanges, hangersáandábrackets for strength andádurability
OE-STYLE DESIGN — Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
OE-STYLE DESIGNá–áFeatures aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter

from

$504.99

EPA COMPLIANT — For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA, CO & NY. Legal in ME on EPA Federal Emission Equipped Vehicles only. Consult your state’s aftermarket converter regulations for details.
DIRECT-FIT DESIGN — Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn’t require specialized fabrication and/or welding
KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES — OE-style high-technology washcoat and optimal precious metal load delivers required reduction in tailpipe emissions to match vehicle application
STRONG AND DURABLE — Features thick OE-style flanges, hangers and brackets for strength and durability
OE-STYLE DESIGN — Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter

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$489.99

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 52889. 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 2013-2015 Chevrolet Malibu, 2017-2020 Buick Envision, and more, this direct-fit catalytic converter also interchanges with OE parts 12627204 and 12656263, among others. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. 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.

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$265.99

CARB COMPLIANT — For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state¿s aftermarket converter regulations.
CARB COMPLIANT — For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state┐s aftermarket converter regulations.
SUPERIOR TECHNOLOGY — Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)
CONSISTENT PERFORMANCE — Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
DURABLE — Features stainless-steel body with aluminized pipe and heat shields for durability
FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation

Most Sold 2018 Chevrolet Impala Exhaust Manifold and Headers

Explore our best-selling Chevrolet parts for the 2018 Impala among 3 OEM and aftermarket options starting from $22.49.

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$495.99

Direct replacement – this manifold converter is designed to match the fit and performance of the original equipment on specific vehicles.
Convenient kit – includes gaskets and downpipe hardware to simplify installation.
Durable construction -manufactured within strict tolerances for reliable longevity
Trustworthy value – backed by team of engineers and quality control experts in the United States

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$29.99

This engine manifold stud and nut match the fit and function of the original hardware on specific makes and models. Ensure a thorough manifold repair or installation with this durable and reliable hardware.

Product Features:

Direct replacement – this engine manifold stud and nut match the fit and function of the original stud and nut on specified years, makes and models
Ideal solution – replaces missing or damaged hardware to ensure a thorough manifold installation or repair
Durable construction – made of quality materials for reliable service life
Quality assured – backed by a team of product engineers based in the United States

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$22.49

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

Top-Rated Exhaust Parts Brands For Your 2018 Chevrolet Impala

Shop for the best-rated brands offering Exhaust Parts and other products for your 2018 Chevrolet Impalas. Below you’ll find some of our best rated Exhaust Parts from FELPRO, and more. Exhaust Parts from these brands that fit a 2018 Impala start at just $4.49 and are rated as high as 5 stars. OEM and aftermarket Exhaust Parts don’t get more top quality, durable, and affordable than from the brands below.

Popular FELPRO 2018 Chevrolet Impala Exhaust Parts

When it comes to maintaining or upgrading your 2018 Chevrolet Impala, using quality Exhaust Parts is essential to ensure durability and a perfect fit. FELPRO ticks all of those boxes. We offer a wide selection of FELPRO Exhaust Parts, specifically designed for the 2018 Chevrolet Impala. With over 4 FELPRO brand Exhaust Parts in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $4.49, with an average price of just $9.64. Plus, with over 1 customer reviews and an average rating of 5 stars, you can trust that our FELPRO Exhaust Parts will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

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$16.29

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Exhaust Pipe Flange Gasket

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$6.29

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Exhaust Pipe Flange Gasket

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$4.49

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EXHAUST FLANGE GASKET

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FAQs for 2018 Chevrolet Impala Exhaust Parts

Which Exhaust Parts are best-sellers for 2018 Chevrolet Impalas?

Out of 19 Exhaust Parts that fit 2018 Chevrolet Impalas, the following parts are the top sellers:

Exhaust Pipe Flange Gasket (20780002) – $6.29
EXHAUST FLANGE GASKET (11646478) – $4.49
OEM Grade Federal / EPA Compliant Universal Catalytic Converter (10605383) – $194.99

What’s the price range for 2018 Chevrolet Impala Exhaust Parts?

Exhaust Part prices for the 2018 Chevrolet Impala start at $4.49 and go up to $1,241.99 for the most premium parts.

What’s the average price of a Exhaust Part for a 2018 Chevrolet Impala?

The average price for Exhaust Parts for the 2018 Chevrolet Impala is $334.87. Keep in mind the variety of part types within our Exhaust Part category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Exhaust Parts for other Chevrolet Impala model years?

Yes, we currently carry Exhaust Parts for 51 model years of Chevrolet Impalas between 1958 and 2020. Exhaust Parts are bought most frequently for the following model years: 2020, 2019, 2017, 2016, 2015, 2014, 2013, 2012, and 2011.

What are the cheapest Exhaust Parts for my 2018 Chevrolet Impala?

The cheapest 2018 Chevrolet Impala Exhaust Parts we carry in stock are:

EXHAUST FLANGE GASKET (11646478) – $4.49
Exhaust Pipe Flange Gasket (20780002) – $6.29
Exhaust Manifold Gasket Set (11401898) – $11.49
Exhaust Pipe Flange Gasket (11464646) – $16.29
Exhaust Manifold Hardware Kit (12592650) – $22.49

What are the top-rated Exhaust Parts that fit the 2018 Chevrolet Impala?

Out of 6 reviews by customers, our 2018 Chevrolet Impala Exhaust Parts have an average customer rating of . These are some of the highest-rated Exhaust Part types for the 2018 Chevrolet Impala and their top-rated products:

Exhaust Gaskets
- Exhaust Manifold Gasket Set (11401898) – $11.49

What types of Exhaust Parts do you sell for my 2018 Chevrolet Impala?

As of 2/5/25, these are some of the most in-demand types of Exhaust Parts for a 2018 Chevrolet Impala:

Can I get help with 2018 Chevrolet Impala Exhaust Part orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Chevrolet Exhaust Parts and more.

What is your return policy for Chevrolet Impala Exhaust Parts?

Advance Auto Parts keeps returns simple. For new Chevrolet Impala Exhaust Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

2018 Chevrolet Impala Exhaust Parts

Walker – Donut Exhaust Pipe Flange Gasket: Fiber with Steel, Heat Resistant, Premium Materials (Part No.31500)

Walker – Exhaust Pipe Flange Gasket (Part No.31652)

Felpro – Exhaust Pipe Flange Gasket (Part No.8194)

Felpro – Exhaust Pipe Flange Gasket (Part No.60988)

Dorman – Double Ended Stud – 3/16-16 x 1-5/8in and 3/8-16 x 3-1/4in (Part No.29201)

Dorman – Dorman Exhaust Hanger (Part No.H8050202213DOR)

Dorman – Help – Exhaust Stud Kit 3/8-16 x 2-1/2 In. and 3/8-16 x 3-1/4 In. (Part No.03147)

Walker – Exhaust System Hanger (Part No.35183)

Dorman – Help – Exhaust Manifold Hardware Kit (Part No.03413B)

ARP Auto Racing – For Use With Chevy Small Block, 3/8"-16, 1"L, Hex Head, Natural, Ss, Set Of 12 (Part No.400-1111)

Taylor Gaskets – Vibe-Lock Bolt (Part No.310016)

ARP Auto Racing – For Use With Chevy Small Block, 3/8"-16, 0.75"L, Hex Head, Natural Ss, Set Of 12 (Part No.400-1101)

MagnaFlow – Street Series Crossmember-Back Performance Exhaust System (Part No.16724)

MagnaFlow – Street Series Cat-Back Performance Exhaust System (Part No.19023)

MagnaFlow – Street Series Crossmember-Back Performance Exhaust System (Part No.15165)

Walker – CalCat CARB Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID) (Part No.81127)

MagnaFlow – California Grade CARB Compliant Universal Catalytic Converter (Part No.418005)

Walker – CalCat CARB Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID) (Part No.82904)

MagnaFlow – OEM Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.51206)

Patriot Exhaust – H8024-1 1 7/8" Header Chevrolet Chevelle Big Block Chevrolet 68-74 Coated (Part No.H8024-1)

Patriot Exhaust – H8062 2" Header Chevrolet Camaro Big Block Chevrolet 67-69 Raw (Part No.H8062)

Flowtech – Standard Header (Part No.11130FLT)

Dorman – Direct Fit Exhaust Manifold: Without Heat Shield (Part No.674-937)

MAHLE Original – Exhaust Manifold Gasket Set (Part No.MS19566)

Hooker Headers – Super Competition Header Gasket (Part No.10808HKR)

Victor Reinz – Exhaust Manifold Gasket Set (Part No.11-10328-01)

Mr. Gasket – Exhaust Manifold Gasket -Performance (Part No.5906)

Mr. Gasket – Ultra Seal: Exhaust Gasket Set (Part No.5900)

Felpro – Exhaust Pipe Flange Gasket (Part No.61465)

Felpro – EXHAUST FLANGE GASKET (Part No.61771)

Felpro – Exhaust Pipe Flange Gasket (Part No.61766)

Felpro – Exhaust Manifold Gasket Set (Part No.MS 97344)

Dorman – Dorman Exhaust Hanger (Part No.H8050202213DOR)

MagnaFlow – OEM Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.51205)

Dorman – Manifold Converter – Not Carb Compliant – Not For Sale – NY – CA – ME (Part No.674-049)

MagnaFlow – OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.52417)

MagnaFlow – OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.52001)

Walker – Ultra EPA Direct Fit Catalytic Converter (Part No.16896)

MagnaFlow – OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.52594)

Walker – Ultra EPA Direct Fit Catalytic Converter (Part No.16895)

Walker – Catalytic Converter- EPA Ultra, Direct Replacement, No Fabrication Needed (Part No.16788)

MagnaFlow – OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.52889)

Walker – CalCat CARB Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID) (Part No.84206)

Dorman – Manifold Converter – Not Carb Compliant – Not For Sale – NY – CA – ME (Part No.674-048)

Dorman – Help – Exhaust Manifold Hardware Kit (Part No.32110)

Dorman – Exhaust Manifold Hardware Kit (Part No.675-226)