1978 Mercury Cougar Exhaust Parts

Essential 1978 Mercury Cougar Exhaust Parts

MagnaFlow – Standard Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.23394)

Standard Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

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$220.99
Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 23394. 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 1989-1990 Ford Thunderbird and 1989-1990 Mercury Cougar. 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 pre-OBDII Federally registered 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 EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
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MagnaFlow – California Grade CARB Compliant Universal Catalytic Converter (Part No.457104)

California Grade CARB Compliant Universal Catalytic Converter

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$377.99
MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 457104 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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MagnaFlow – California Grade CARB Compliant Universal Catalytic Converter (Part No.337084)

California Grade CARB Compliant Universal Catalytic Converter

from

$334.99
MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 337084 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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Dorman – Manifold Converter – Not Carb Compliant – Not For Sale – NY – CA – ME (Part No.674-883)

Manifold Converter - Not Carb Compliant - Not For Sale - NY - CA - ME

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$576.99
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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Dorman – Help – Exhaust Stud Kit – 7/16-14 x 2-1/4 In. (Part No.03099)

Exhaust Stud Kit - 7/16-14 x 2-1/4 In.

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$9.29
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
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Felpro – EXHAUST FLANGE BOLT & SPRING KIT (Part No.ES 72142)

EXHAUST FLANGE BOLT & SPRING KIT

from

$17.29
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
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
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Felpro – EXHAUST MANIFOLD BOLT SET (Part No.ES 75118)

EXHAUST MANIFOLD BOLT SET

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$25.99
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.03407B)

Exhaust Manifold Hardware Kit

from

$24.99
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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Walker – Exhaust 36129 Exhaust Bolt and Spring (Part No.36129)

Exhaust 36129 Exhaust Bolt and Spring

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$18.49
Complete your exhaust repair with a Walker spring bolt kit. Designed to ensure a tight connection and inhibit leaks, Walker hardware is manufactured from durable and robust material for long service life.

Product Features:
  • KEEPS EXHAUST PARTS IN PLACE — Designed to support undercar exhaust components
  • CONSISTENT PERFORMANCE — Spring designed with the right compression strength for a secure connection
  • PREMIUM MATERIALS — Made from high-quality materials for durability and long life
  • THE RIGHT CONNECTION — Designed to be used for ball and socket joint
  • BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
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Remflex – Flexible Graphite, Set Of 2, 1-1/4 Inch X 1-5/8 Inch Square Port Size (Part No.3028)

Flexible Graphite, Set Of 2, 1-1/4 Inch X 1-5/8 Inch Square Port Size

from

$37.49
Remflex unique flexible graphite material has been proven for more than 30 years in industrial applications, where temperatures routinely exceed 2,000 degrees – day after day, week after week, year after year. Now, they are bringing this technology to enthusiasts of all kinds to eliminate exhaust leaks for good Whether you have an old pick-up that needs a manifold gasket, or a race car with custom-built headers, you can be assured that Remflex exhaust gaskets will work properly the first time, every time.

Product Features:
  • 100 Percent Flexible Graphite Construction
  • Designed To Withstand Clamping Force And Incredible Heat
  • Eliminate Exhaust Leaks
  • No Re-Torquing Necessary, Remflex Exhaust Gaskets Rebound 30 Percent, Creating An Optimum Seal That Eliminates The Need To Re-Torque
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Hooker Headers – Super Competition Header Gasket (Part No.10877HKR)

Super Competition Header Gasket

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$23.49
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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Mr. Gasket – Exhaust Gasket Set (Part No.252)

Exhaust Gasket Set

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$30.99
Manufactured from high-temperature composite exhaust material. Provides maximum torque retention to eliminate gasket failure. Can be trimmed if necessary for modified port applications. Precision die cut for an excellent fit. For OE replacement, high-performance street, drag race and oval track.

Product Features:
  • Manufactured from high-temperature acrylic blend exhaust material
  • Provides excellent sealing and durability
  • Can be trimmed if necessary for modified port applications
  • For OE replacement, high performance street, drag race and oval track use
  • Precision Die Cut For Excellent Fit
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Felpro – Exhaust Manifold Gasket Set (Part No.MS 9789-1)

Exhaust Manifold Gasket Set

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$13.29
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
  • Contains all gaskets and seals to remove and replace exhaust manifold
  • Contains all gaskets and seals to remove and replace exhaust manifold
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Felpro – Exhaust Pipe Flange Gasket (Part No.60198)

Exhaust Pipe Flange Gasket

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
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Felpro – Exhaust Flange Gasket (Part No.60195)

Exhaust Flange Gasket

from

$3.49
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
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Felpro – Exhaust Pipe Flange Gasket (Part No.60583)

Exhaust Pipe Flange Gasket

from

$15.29
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
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Felpro – Exhaust Pipe Flange Gasket (Part No.60985)

Exhaust Pipe Flange Gasket

from

$5.29
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
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Walker – Donut Exhaust Pipe Flange Gasket: Graphite, Heat Resistant, Premium Materials (Part No.31378)

Donut Exhaust Pipe Flange Gasket: Graphite, Heat Resistant, Premium Materials

from

$10.49
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 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
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Mr. Gasket – Exhsthdrbolt (Part No.2231G)

Exhsthdrbolt

from

$56.99
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:
  • 16 per Package
  • Includes a ball-head/hex-key socket-installation tool that makes it easy to get them started
  • 410 stainless steel
  • Minimum 180,000 PSI tensile strength
  • 24 equally spaced clockwise teeth
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Walker – Exhaust 35574 Catalytic Converter Air Tube (Part No.35574)

Exhaust 35574 Catalytic Converter Air Tube

from

$87.99
Walker®, with our worldwide OE partnerships and manufacturing facilities, possesses the technical excellence needed to meet today’s emissions control needs, while developing solutions for tomorrow’s challenges. Walker® is a ‘one-stop’ convenience, offerin

Product Features:
  • Offered in a variety of styles and sizes for your installation needs
  • Constructed from durable and robust material for long life
  • Universal fit for installation flexibility
  • Designed to work seamlessly with OE and Walker aftermarket replacement parts
  • New Walker® accessories help to ensure effective exhaust repairs
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Taylor Gaskets – Vibe-Lock Bolt (Part No.310001)

Vibe-Lock Bolt

from

$102.99
Vibe-Lock Bolt

Felpro – Exhaust Manifold Hardware Kit (Part No.ES 75114)

Exhaust Manifold Hardware Kit

from

$30.49
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:
  • 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).
See More

Felpro – Exhaust Manifold Hardware Kit (Part No.ES 75115)

Exhaust Manifold Hardware Kit

from

$40.99
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).
See More

Flowtech – Terminator; Exhaust Tips (Part No.59905FLT)

Terminator; Exhaust Tips

from

$85.99


Product Features:
  • Show Quality Chrome Platinum
  • Durable Black Finish
  • Can Be Welded Or Clamped
  • Complete The System
  • Glass-Packed Resonators
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1978 Mercury Cougar Exhaust Parts

You count on your 1978 Mercury Cougar to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Exhaust Parts. With 26 Exhaust Parts ranging in price from $2.99 to $678.99, you’re sure to find everything you need for your 1978 Mercury Cougar.

Brands matter. If you want to shop a specific Exhaust Parts brand, we stock 9 different brands like Felpro, Dorman, and Flowtech. 1978 Mercury Cougar Exhaust Parts start as low as $2.99!

One of the best ways to find top quality OEM or aftermarket Exhaust Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 158 extensive product reviews on 1978 Mercury Cougar Exhaust Parts. Some of the top-rated Exhaust Parts products we carry are Catalytic Converter- EPA Standard, Direct Replacement, No Fabrication Needed with 5.0 stars and Seal-4-Good Header Flange Gasket with 5.0 stars.

Did we mention you can order your Exhaust Parts from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Exhaust Parts inventory for your 1978 Mercury Cougar below to get started!

Top-Rated Exhaust Parts Brands For Your 1978 Mercury Cougar

Trusted Exhaust Parts OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1978 Mercury Cougar running right for years to come. In our inventory you’ll find brands like Felpro, Dorman, Flowtech, and even more.

Popular Dorman – Help Exhaust Parts

You’ll find popular Dorman – Help brand products across Exhaust System Kits. All are waiting to get your 1978 Mercury Cougar back on the road. Some of the top-rated Dorman – Help products in these categories are:
Exhaust Manifold Hardware Kit
from $24.99
(1)
Exhaust Manifold Hardware Kit
Exhaust Manifold Hardware Kits

Top-Rated Felpro Exhaust Parts


If Felpro are what you’re looking for, our inventory holds plenty. We stock Felpro brand Exhaust Parts for your 1978 Mercury Cougar, and some of our most reviewed Felpro parts include:
Exhaust Pipe Flange Gasket
from $2.99
(15)
Exhaust Pipe Flange Gasket
Exhaust Pipe and Flange Gaskets
Exhaust Manifold Gasket Set
from $31.49
(11)
Exhaust Manifold Gasket Set
Exhaust Manifold Gaskets
Exhaust Pipe Flange Gasket
from $5.29
(10)
Exhaust Pipe Flange Gasket
Exhaust Pipe and Flange Gaskets

FAQs for 1978 Mercury Cougar Exhaust Parts

What are the most purchased Exhaust Parts for the 1978 Mercury Cougar?

Out of 26 Exhaust Parts for the 1978 Mercury Cougar, the most popular in our inventory are:
Exhaust Stud Kit - 7/16-14 x 2-1/4 In.
from $9.29
This product is not rated
Exhaust Stud Kit – 7/16-14 x 2-1/4 In.
Exhaust Hangers and Hardware
Terminator; Exhaust Tips
from $85.99
(5)
Terminator; Exhaust Tips
Exhaust Chrome and Stainless Tips
Exhaust Manifold Gasket Set
from $16.29
This product is not rated
Exhaust Manifold Gasket Set
Exhaust Manifold Gaskets

What are the top-rated 1978 Mercury Cougar Exhaust Parts?

Top-rated Exhaust Parts for your 1978 Mercury Cougar based on customer reviews/ratings are:
Catalytic Converter- EPA Standard, Direct Replacement, No Fabrication Needed
from $234.99
(1)
Catalytic Converter- EPA Standard, Direct Replacement, No Fabrication Needed
“Nice Cat. I don’t know what else to say. It fits and it works. Two thumbs up!”
Seal-4-Good Header Flange Gasket
from $51.99
(1)
Seal-4-Good Header Flange Gasket
“Worked very well.”
Mls Exhaust Gasket
from $29.49
(1)
Mls Exhaust Gasket
“Works great, better than regular header gaskets !”