1978 GMC K15 Exhaust Parts

Essential 1978 GMC K15 Exhaust Parts

Walker – Front Pipe Aluminized 71.375" (Part No.47523)

Front Pipe Aluminized 71.375"

from

$57.99
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
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Walker – Front Pipe Aluminized 38.625" (Part No.44607)

Front Pipe Aluminized 38.625"

from

$67.99
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
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Flowtech – Standard Header (Part No.11500SFLT)

Standard Header

from

$432.99


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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Dorman – Direct Fit Exhaust Manifold: Without Heat Shield (Part No.674-202)

Direct Fit Exhaust Manifold: Without Heat Shield

from

$145.99
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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Walker – Tail Pipe Aluminized 37" (Part No.44606)

Tail Pipe Aluminized 37"

from

$63.99
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
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Walker – Donut Exhaust Pipe Flange Gasket: Iron, Heat Resistant, Premium Materials (Part No.31416)

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

from

$6.99
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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Walker – Donut Exhaust Pipe Flange Gasket: Fiber with Steel, Heat Resistant, Premium Materials (Part No.31400)

Donut Exhaust Pipe Flange Gasket: Fiber with Steel, Heat Resistant, Premium Materials

from

$3.29
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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Thrush – 89024 Exhaust System Kit (Part No.89024)

89024 Exhaust System Kit

from

$327.99
Upgrade your vintage muscle car’s exhaust system with a Thrush® Turbo Header Back System. Featuring Thrush Turbo mufflers with reversible flow chambers, spun-locked heads and aluminized construction, it has everything needed for installation.

Product Features:
  • ENGINEERED TO LAST — Features 2.5-in. aluminized smooth bend pipes
  • CLASSIC SOUND — Features Thrush® Turbo mufflers with tri-flow design with reversible flow chambers for that classic Thrush sound
  • STRONG AND DURABLE — Muffler has a 100% aluminized-coated shell and spun lock heads for long life
  • EASY TO INSTALL — Bolt-on installation for an easy upgrade; no fabrication or welding required
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Hooker Headers – Dual Competition Header Back Exhaust System Kit (Part No.16526HKR)

Dual Competition Header Back Exhaust System Kit

from

$293.99
Designed to fit Hooker Competition header, Manifold or catalytic converter back applications. Cat-back kits install behind the converter and all other applicable emission control devices.

Product Features:
  • Reducer Flex-Tubes
  • Reduces Backpressure
  • Hardware Included
  • Instructions Included
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Walker – Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (Part No.21784)

Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed

from

$81.99
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
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Flowmaster Inc. – Super 40 Series Muffler, 2.25in Offset Inlet 2.25in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.952448)

Super 40 Series Muffler, 2.25in Offset Inlet 2.25in Offset Outlet, Non-Reversible, Aggressive Sound

from

$126.99
The Super 40 features Flowmaster’s Delta Flow technology. It’s larger case profile provides the best of both worlds of performance and sound. The Super 40 has that deep powerful sound of the Original 40 series but with all the benefits of performance and low interior resonance from the Delta Flow technology. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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Dorman – Help – Exhaust Stud Kit – 3/8-16 x 2-1/2 In. (Part No.03112)

Exhaust Stud Kit - 3/8-16 x 2-1/2 In.

from

$6.29
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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Dorman – Double Ended Stud Kit – 3/8-16 x 1-1/4 in and 3/8-16 x 7/16 in (Part No.29200)

Double Ended Stud Kit - 3/8-16 x 1-1/4 in and 3/8-16 x 7/16 in

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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Walker – Y Pipe Aluminized 40" (Part No.40365)

Y Pipe Aluminized 40"

from

$171.99
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
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Taylor Gaskets – Seal-4-Good Header Flange Gasket (Part No.66120)

Seal-4-Good Header Flange Gasket

from

$48.99
Seal-4-Good Header Flange Gasket

Mr. Gasket – Ultra Seal; Exhaust Gasket Set (Part No.5913)

Ultra Seal; Exhaust Gasket Set

from

$35.99
Graphite impregnated facing and a steel expanded metal core. Superior tensile strength. Resists cracking and withstands intense heat. Resists deteriorating. Anti-stick properties and easy removal for disassembly.

Product Features:
  • Graphite-impregnated facing
  • Steel expanded metal core
  • Superior tensile strength
  • Resists cracking
  • Withstands intense heat
  • Resists deteriorating
  • Anti-stick properties
  • Easy removal for disassembly
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Felpro – Exhaust Pipe Flange Gasket (Part No.9587)

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 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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Felpro – Exhaust Pipe Flange Gasket (Part No.60986)

Exhaust Pipe Flange Gasket

from

$4.29
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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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)

For Use With Chevy Small Block, 3/8"-16, 1"L, Hex Head, Natural, Ss, Set Of 12

from

$44.49
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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Mr. Gasket – ExhstHdrBolt (Part No.2230G)

ExhstHdrBolt

from

$46.99
ExhstHdrBolt

ARP Auto Racing – For Use With Chevy Big Block, 3/8"-16, 0.75"L, Hex Head, Natural, Ss, Set Of 16 (Part No.400-1102)

For Use With Chevy Big Block, 3/8"-16, 0.75"L, Hex Head, Natural, Ss, Set Of 16

from

$40.49
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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MagnaFlow – Standard Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.93432)

Standard Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$201.99
Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 93432. 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 1975-1986 Chevrolet C10, 1975-1986 Chevrolet K10, and additional vehicles. 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 – Standard Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.94006)

Standard Grade Federal / EPA Compliant Universal Catalytic Converter

from

$119.99
MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 94006 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 pre-OBDII Federally registered 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 EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
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MagnaFlow – Standard Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.94016)

Standard Grade Federal / EPA Compliant Universal Catalytic Converter

from

$126.99
MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 94016 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 pre-OBDII Federally registered 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 EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
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Walker – Clamp U-Bolt Bolt Dia 0.375 Length Nut Type Hex Pipe Dia 2.25 (Part No.35336)

Clamp U-Bolt Bolt Dia 0.375 Length Nut Type Hex Pipe Dia 2.25

from

$2.49
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
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Walker – Clamp U-Bolt Bolt Dia 0.375 Length Nut Type Hex Pipe Dia 2.5 (Part No.35337)

Clamp U-Bolt Bolt Dia 0.375 Length Nut Type Hex Pipe Dia 2.5

from

$8.99
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
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Walker – Clamp U-Bolt Bolt Dia 0.375 Length Nut Type Hex Pipe Dia 2 (Part No.35335)

Clamp U-Bolt Bolt Dia 0.375 Length Nut Type Hex Pipe Dia 2

from

$1.99
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
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1978 GMC K15 Exhaust Parts

You count on your 1978 GMC K15 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 65 Exhaust Parts ranging in price from $1.99 to $793.99, you’re sure to find everything you need for your 1978 GMC K15.

Brands matter. If you want to shop a specific Exhaust Parts brand, we stock 12 different brands like Felpro, Dorman, and Mr. Gasket. 1978 GMC K15 Exhaust Parts start as low as $1.99!

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 258 extensive product reviews on 1978 GMC K15 Exhaust Parts. Some of the top-rated Exhaust Parts products we carry are Standard Grade Federal / EPA Compliant Universal Catalytic Converter with 3.9 stars and Catalytic Converter- EPA Standard, Direct Replacement, No Fabrication Needed with 4.6 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 GMC K15 below to get started!

Top-Rated Exhaust Parts Brands For Your 1978 GMC K15

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 GMC K15 running right for years to come. In our inventory you’ll find brands like Felpro, Dorman, Mr. Gasket, and even more.

Popular Hooker Headers Exhaust Parts

You’ll find popular Hooker Headers brand products across Exhaust System Kits. All are waiting to get your 1978 GMC K15 back on the road. Some of the top-rated Hooker Headers products in these categories are:
Dual Competition Header Back Exhaust System Kit
from $293.99
(1)
Dual Competition Header Back Exhaust System Kit
Exhaust System 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 GMC K15, and some of our most reviewed Felpro parts include:
Exhaust Manifold Gasket Set
from $19.99
(21)
Exhaust Manifold Gasket Set
Exhaust Manifold Gaskets
Exhaust Pipe Flange Gasket
from $2.99
(15)
Exhaust Pipe Flange Gasket
Exhaust Pipe and Flange Gaskets
Exhaust Pipe Flange Gasket
from $5.29
(10)
Exhaust Pipe Flange Gasket
Exhaust Pipe and Flange Gaskets

FAQs for 1978 GMC K15 Exhaust Parts

What are the most purchased Exhaust Parts for the 1978 GMC K15?

Out of 65 Exhaust Parts for the 1978 GMC K15, the most popular in our inventory are:
Exhaust Stud Kit 3/8-16 x 2-1/2 In. and 3/8-16 x 3-1/4 In.
from $11.29
(10)
Exhaust Stud Kit 3/8-16 x 2-1/2 In. and 3/8-16 x 3-1/4 In.
Exhaust Hangers and Hardware
Aluminum Exhaust Gasket
from $40.99
This product is not rated
Aluminum Exhaust Gasket
Exhaust Manifold Gaskets
Exhaust Stud Kit - 3/8-16 x 2-1/2 In.
from $6.29
This product is not rated
Exhaust Stud Kit – 3/8-16 x 2-1/2 In.
Exhaust Hangers and Hardware

What are the top-rated 1978 GMC K15 Exhaust Parts?

Top-rated Exhaust Parts for your 1978 GMC K15 based on customer reviews/ratings are:
Standard Grade Federal / EPA Compliant Universal Catalytic Converter
from $119.99
(13)
Standard Grade Federal / EPA Compliant Universal Catalytic Converter
“Good fit great price”
Catalytic Converter- EPA Standard, Direct Replacement, No Fabrication Needed
from $167.99
(5)
Catalytic Converter- EPA Standard, Direct Replacement, No Fabrication Needed
“Replaced stock converter and would use again.”
Exhaust Pipe Flange Gasket
from $4.29
(2)
Exhaust Pipe Flange Gasket
“Great fit & good product”