1977 GMC K25 Exhaust Parts
Find Your Specific 1977 GMC K25 Exhaust Parts
Below you will find various in-demand GMC Exhaust Parts, components and accessories for your 1977 K25. Advance Auto Parts has popular K25 parts like Exhaust Fittings, Exhaust Pipes, Exhaust Hangers and more. You’ll also find aftermarket and OEM Exhaust Parts for other K25 model years including
1975,
1976,
1978 and more. Select a category of 1977 GMC K25 Exhaust Parts below and start saving instantly.
Popular 1977 GMC K25 Exhaust Parts Categories
Essential Exhaust Parts for 1977 GMC K25s
Flowtech – Super Street; Header Dual Kit (Part No.51525FLT)
from
$258.99Product Features:
- Increase Performance
- Heavy Duty
- Header Dual Kit
- Includes All Hardware
- Installation Instructions
- Offer Maximum Versatility
- Mufflers Not Included
Flowtech – Super Street; Manifold Dual Kit (Part No.52525FLT)
from
$313.99Product Features:
- Increase Performance
- Heavy Duty
- Manifold Dual Kit
- Includes All Hardware
- Installation Instructions
- Offer Maximum Versatility
- Mufflers Not Included
Flowtech – Terminator; Exhaust Tips (Part No.59905FLT)
from
$93.99Product Features:
- Show Quality Chrome Platinum
- Durable Black Finish
- Can Be Welded Or Clamped
- Complete The System
- Glass-Packed Resonators
Mr. Gasket – Performance Exhaust Gasket Set for Enhanced Sealing and Durability (Part No.150B)
from
$23.99
Mr. Gasket Performance exhaust gasket material is a heavy duty material, .062 inch thick, consisting of an acrylic binder system to resist high temperature. This material is made for sealing exhaust applications. Provides excellent sealing and durability.
Product Features:
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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
- Resists Deteriorating
- Provides Excellent Torque Retention
Felpro – Intake and Exhaust Manifolds Combination Gasket (Part No.MS 9786)
from
$18.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
Product Features:
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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
Felpro – Exhaust Pipe Flange Gasket (Part No.8194)
from
$3.99
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:
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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
Felpro – Exhaust Pipe Flange Gasket (Part No.60986)
from
$4.99
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:
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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
Hooker Headers – Competition Header (Part No.2463-1HKR)
from
$799.99
LS1 full length engine swap header fits 66-72 Chevelle, El Camino, Monte Carlo and Sprint applications. Hooker has a complete line of engine swap headers, front frame mounts and transmission mounts for popular engine swaps. Available for Chevy, Chrysler and Ford small block and big block engines. Hooker swap headers and mounts are designed to provide an exact fit when used together. Hooker swap headers add the extra horsepower and torque the serious enthusiast demands. Hooker Headers are the best single improvement you can make.
Product Features:
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Product Features:
- High Performance
- Affordable
- Durable 16 Gauge Material
- Welds Easier
- Lasts Longer
- Heat Cured
- High Heat Resistant
Hooker Headers – LS1 Swap Headers for 66-72 Chevelle, El Camino & More (Part No.2453HKR)
from
$321.99
LS1 full length engine swap header fits 66-72 Chevelle, El Camino, Monte Carlo and Sprint applications. Hooker has a complete line of engine swap headers, front frame mounts and transmission mounts for popular engine swaps. Available for Chevy, Chrysler and Ford small block and big block engines. Hooker swap headers and mounts are designed to provide an exact fit when used together. Hooker swap headers add the extra horsepower and torque the serious enthusiast demands. Hooker Headers are the best single improvement you can make.
Product Features:
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Product Features:
- High Performance
- Affordable
- Durable 16 Gauge Material
- Welds Easier
- Lasts Longer
- Heat Cured
- High Heat Resistant
MagnaFlow – Standard Grade Universal Catalytic Converter – 2.50" (Part No.94006)
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:
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Product Features:
- Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Compact, lightweight construction enables installation in confined areas, welding is required
- Durable 308 stainless steel MIG welds
MagnaFlow – California Universal Catalytic Converter – 2.5" (Part No.339106)
from
$480.99
MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 339106 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:
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Product Features:
- Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Compact, lightweight construction enables installation in confined areas, welding is required
- Durable 308 stainless steel MIG welds
Hooker Headers – Dual Competition Header Back Exhaust System Kit (Part No.16526HKR)
from
$325.99
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:
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Product Features:
- Reducer Flex-Tubes
- Reduces Backpressure
- Hardware Included
- Instructions Included
Dynomax – Dual Header Exhaust System Kit for 1973-89 GMC/Chevrolet 4WD Trucks/SUVs (Part No.89004)
from
$208.99
Give your vintage vehicle’s exhaust system an upgrade with a DynoMax dual header kit. Designed to attach to headers, it features a special reducer that allows for a variety of mounting options.
Product Features:
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Product Features:
- COMPATIBILITY : Designed for a variety of full-size 1973-89 GMC 4WD trucks and Chevrolet 4WD SUVs; see product information for compatibility and engine specifications
- BUILD IT YOURSELF : Design and custom fabricate your own exhaust system with this kit that attaches to OE headers
- FLEXIBLE MOUNTING : Special reducer design allows for a variety of mounting options
- IMPROVED FLOW CAPACITY : Smooth bends improve flow capacity over traditional bends
- SPECS : Extra-long tailpipes with side exits with a full 2.25-in. diameter; tail pipes exit each side of vehicle behind rear tires
- COMPLETE SOLUTION : Includes all the necessary clamps, hangers, flanges, gaskets, mounting hardware, intermediate, extension and tail pipes
- PREMIUM MATERIALS: Made from quality aluminized steel for durability and long life
- BETTER TOGETHER : Complete your system with premium DynoMax mufflers and DynoMax accessories for a complete performance exhaust system
- WARNING : Not legal for use on pollution-controlled motor vehicles; headers are for racing use only and not intended or applicable for highway use
Taylor Gaskets – Vibe-Lock Bolt (Part No.310016)
from
$89.99
Vibe-Lock Bolt
Taylor Gaskets – Vibe-Lock Bolt (Part No.310001)
from
$102.99
Vibe-Lock Bolt
Walker – Quiet-Flow Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD) (Part No.21784)
from
$62.99
Product Features:
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- 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 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
- BUY WITH CONFIDENCE – Comes with Walker’s limited warranty and exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.
Walker – SoundFX Universal Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD) (Part No.17831)
from
$86.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX universal mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.
Product Features:
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Product Features:
- RESISTS CORROSION – Aluminized steel construction and internal drainage system helps reduce corrosion
- 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
- FLEXIBLE SOLUTION – Customizable design features expandable bushings for easy fitment and may require specialized fabrication and welding for installation
- FACTORY SOUND – Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
- GET MORE MILES FROM YOUR MUFFLER – Designed and tested to extend muffler life
Flowmaster Inc. – Prebent Tailpipes – 2.50 in. Side Exit – Pair (Part No.15803)
from
$232.99
Prebent pipe kits. Flowmaster’s 16 gauge mandrel bent pipe kits are designed to fit perfectly onto your vehicle with all the quality and performance that you would expect from Flowmaster.
See More
Walker – Exhaust Clamp (Part No.35336)
from
$2.99
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:
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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
Walker – Exhaust Bracket (Part No.35362)
from
$7.79
Complete your exhaust repair with Walker brackets. Designed to support undercar exhaust components, Walker brackets are manufactured from durable and robust material for long service life.
Product Features:
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Product Features:
- KEEPS EXHAUST PARTS IN PLACE – Designed to support undercar exhaust components
- 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
- COMPATIBILITY – Works seamlessly with OE and Walker aftermarket replacement parts
- BETTER TOGETHER – Use Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
Walker – Exhaust Clamp (Part No.35335)
from
$2.99
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:
See More
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
Walker – Exhaust Tail Pipe 2" Inlet (ID) 2" Outlet (ID) (Part No.44606)
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:
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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
Flowtech – HEADER FLT BLOCK HUGGER (Part No.10010FLT)
from
$83.99
HEADER FLT BLOCK HUGGER
Walker – Exhaust Pipe 2.5" Outlet (OD) (Part No.44607)
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:
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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
Walker – Exhaust System Hanger (Part No.35183)
from
$16.79
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:
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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
Dorman – Double Ended Stud Kit – 3/8-16 x 1-1/4 in and 3/8-16 x 7/16 in (Part No.29200)
from
$10.99
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:
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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
Dorman – Help – Exhaust Stud Kit – 3/8-16 x 2-1/2 In. (Part No.03112)
from
$6.99
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.
Product Features:
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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
Walker – Exhaust System Hanger (Part No.35103)
from
$7.99
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:
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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
Upgrade your 1977 GMC K25 with Top-Quality Exhaust Parts
When it comes to maintaining or upgrading your 1977 GMC K25, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your GMC or enhancing its overall performance, Exhaust Parts are key to keeping your K25 functioning at its best. At Advance Auto Parts, we offer a wide selection of 83 Exhaust Parts for the 1977 GMC K25, designed to meet your needs without breaking the bank.
From
Exhaust Fitting
replacements to
Exhaust Pipes
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 1977 GMC K25 at great prices.
Our Exhaust Parts inventory for this model
ranges from just $2.79 to $799.99, with
an average price of $100.77.
Our 83 Exhaust Parts in stock come from 13 trusted brands, so you’re sure to find the right part for your 1977 GMC K25 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 1977 GMC K25, we stock popular OEM and aftermarket Exhaust Parts from top names
like FELPRO, Hooker Headers, Dorman, and more.
FELPRO Exhaust Parts
start at just $4.99 and boast an impressive 4.6 stars average rating from customers.
Hooker Headers and Dorman also bring quality to the table, with Exhaust Parts available starting at $10.49, and at an average 4.3 stars rating.
With 346 customer reviews and counting, our 1977 GMC K25 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 1977 GMC K25 is always ready to roll. We’re committed to providing you with everything you need to keep your K25 in top shape, all in one place.
Start shopping confidently below for your 1977 GMC K25!
Best-Selling Exhaust Fittings for 1977 GMC K25s
Enhance the driving experience in your GMC with 4 quality Exhaust Fitting components, starting at $2.99.
Walker – Exhaust Bracket (Part No.35362)
from
$7.79
Complete your exhaust repair with Walker brackets. Designed to support undercar exhaust components, Walker brackets are manufactured from durable and robust material for long service life.
Product Features:
See More
Product Features:
- KEEPS EXHAUST PARTS IN PLACE – Designed to support undercar exhaust components
- 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
- COMPATIBILITY – Works seamlessly with OE and Walker aftermarket replacement parts
- BETTER TOGETHER – Use Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
Walker – Exhaust Clamp (Part No.35337)
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:
See More
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
Walker – Exhaust Clamp (Part No.35336)
from
$2.99
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:
See More
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
Walker – Exhaust Clamp (Part No.35335)
from
$2.99
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:
See More
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
Most Popular 1977 GMC K25 Exhaust Pipes
Customize your GMC with 12 Exhaust Pipes products
like Exhaust Pipe and Flange Gaskets,
Exhaust Pipes, and
Exhaust Extension Pipes, all
priced under $313.99.
Felpro – Exhaust Pipe Flange Gasket (Part No.60985)
from
$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:
See More
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
Felpro – Exhaust Pipe Flange Gasket (Part No.60986)
from
$4.99
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:
See More
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
Felpro – Exhaust Pipe Flange Gasket (Part No.8194)
from
$3.99
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:
See More
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
Flowtech – HEADER FLT BLOCK HUGGER (Part No.10010FLT)
from
$83.99
HEADER FLT BLOCK HUGGER
Flowtech – Super Street; Manifold Dual Kit (Part No.52525FLT)
from
$313.99Product Features:
- Increase Performance
- Heavy Duty
- Manifold Dual Kit
- Includes All Hardware
- Installation Instructions
- Offer Maximum Versatility
- Mufflers Not Included
Flowtech – Super Street; Header Dual Kit (Part No.51525FLT)
from
$258.99Product Features:
- Increase Performance
- Heavy Duty
- Header Dual Kit
- Includes All Hardware
- Installation Instructions
- Offer Maximum Versatility
- Mufflers Not Included
Felpro – Exhaust Pipe Flange Gasket (Part No.9587)
from
$3.99
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:
See More
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
Walker – Exhaust Tail Pipe 2" Inlet (ID) 2" Outlet (ID) (Part No.44606)
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:
See More
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
Walker – Exhaust Pipe 2.5" Outlet (OD) (Part No.44607)
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:
See More
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
Flowmaster Inc. – Prebent Tailpipes – 2.50 in. Side Exit – Pair (Part No.15803)
from
$232.99
Prebent pipe kits. Flowmaster’s 16 gauge mandrel bent pipe kits are designed to fit perfectly onto your vehicle with all the quality and performance that you would expect from Flowmaster.
See More
Walker – Exhaust Pipe 2.25" Outlet (OD) (Part No.47523)
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:
See More
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
Walker – Donut Exhaust Pipe Flange Gasket: Fiber with Steel, Heat Resistant, Premium Materials (Part No.31400)
from
$2.79
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:
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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
Top Picks for 1977 GMC K25 Exhaust Hangers
Upgrade GMC K25s with top-quality Exhaust Hangers parts, including 8 OEM and aftermarket selections for your 1977 model.
Dorman – Double Ended Stud – 3/16-16 x 1-5/8in and 3/8-16 x 3-1/4in (Part No.29201)
from
$10.49
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:
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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
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)
from
$11.49
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.
Product Features:
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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
Dorman – Help – Exhaust Manifold Stud Kit – 3/8-16 x 3-1/4 In. (Part No.03113)
from
$6.99
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.
Product Features:
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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
Walker – Exhaust System Hanger (Part No.35103)
from
$7.99
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:
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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
Dorman – Help – Exhaust Stud Kit – 3/8-16 x 2-1/2 In. (Part No.03112)
from
$6.99
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.
Product Features:
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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
Dorman – Double Ended Stud Kit – 3/8-16 x 1-1/4 in and 3/8-16 x 7/16 in (Part No.29200)
from
$10.99
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:
See More
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
Walker – Exhaust System Hanger (Part No.35183)
from
$16.79
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:
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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
Dorman – Help – Exhaust Stud Kit – 3/8-16 x 3-5/16 In. (Part No.03106)
from
$11.29
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.
Product Features:
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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
In-Demand Exhaust Mufflers for 1977 GMC K25s
Select from 2 premium Exhaust Mufflers parts for your 1977 GMC K25, with prices ranging from $62.99 to $86.99.
Walker – Quiet-Flow Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD) (Part No.21784)
from
$62.99
Product Features:
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- 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 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
- BUY WITH CONFIDENCE – Comes with Walker’s limited warranty and exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.
Walker – SoundFX Universal Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD) (Part No.17831)
from
$86.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX universal mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.
Product Features:
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Product Features:
- RESISTS CORROSION – Aluminized steel construction and internal drainage system helps reduce corrosion
- 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
- FLEXIBLE SOLUTION – Customizable design features expandable bushings for easy fitment and may require specialized fabrication and welding for installation
- FACTORY SOUND – Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
- GET MORE MILES FROM YOUR MUFFLER – Designed and tested to extend muffler life
Most Sold 1977 GMC K25 Catalytic Converters
Explore our best-selling GMC parts for the 1977 K25 among 3 OEM and aftermarket options starting from $126.99.
MagnaFlow – Standard Grade Universal Catalytic Converter – 2.50" (Part No.94016)
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:
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Product Features:
- Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Compact, lightweight construction enables installation in confined areas, welding is required
- Durable 308 stainless steel MIG welds
MagnaFlow – California Universal Catalytic Converter – 2.5" (Part No.339106)
from
$480.99
MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 339106 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:
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Product Features:
- Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Compact, lightweight construction enables installation in confined areas, welding is required
- Durable 308 stainless steel MIG welds
MagnaFlow – Direct-Fit Standard Grade Catalytic Converter (Part No.93432)
from
$201.99
MagnaFlow Standard Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 93432 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. 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:
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Product Features:
- Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- 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
- Durable 308 stainless steel MIG welds
Top-Rated Exhaust Parts Brands For Your 1977 GMC K25
Shop for the best-rated brands offering Exhaust Parts and other products for your 1977 GMC K25s. Below you’ll find some of our best rated Exhaust Parts from FELPRO, Hooker Headers, and Dorman, and more. Exhaust Parts from these brands that fit a 1977 K25 start at just $4.99 and are rated as high as 4.6 stars. OEM and aftermarket Exhaust Parts don’t get more top quality, durable, and affordable than from the brands below.
Popular FELPRO 1977 GMC K25 Exhaust Parts
When it comes to maintaining or upgrading your 1977 GMC K25, 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 1977 GMC K25. With over 3 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 $4.99, with an average price of just $10.76. Plus, with over 33 customer reviews and an average rating of 4.6 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.
from
$20.99
(21)
Exhaust Manifold Gasket Set
“Easy to install with slots for manifold bolts , just slide them in”
from
$6.29
(10)
Exhaust Pipe Flange Gasket
“These items fit the application perfectly and sealed the exhaust pipe flange to manifold correctly.”
Popular Hooker Headers 1977 GMC K25 Exhaust Parts
Hooker Headers auto parts is one of the highest quality Exhaust Part brands in the market. Any 1977 GMC K25 owner should feel confident when installing genuine Hooker Headers parts in their vehicle. To ensure the best fit and performance for your 1977 K25, Advance Auto Parts carries a full inventory of 2 Hooker Headers Exhaust Parts. Plus you will be keeping your GMC in peak condition while saving money because prices on these Hooker Headers Exhaust Parts range from $321.99 to $325.99, plus, with more than 3 customer reviews and an impressive 4.3 stars average rating, you can be confident the Fram Exhaust Parts below will deliver on both quality and value.
from
$321.99
(2)
LS1 Swap Headers for 66-72 Chevelle, El Camino & More
“Used other headers before and ive never had an install go so easy. Ive used the flowtech headers also made by holley but they are nowhere near the sam”
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$325.99
(1)
Dual Competition Header Back Exhaust System Kit
“This exhaust system is about as good as it gets for pre bent systems. The mandrel bends had no kinks and installed very easily. It hooked right up to ”
FAQs for 1977 GMC K25 Exhaust Parts
Which Exhaust Parts are best-sellers for 1977 GMC K25s?
Out of 83 Exhaust Parts that fit 1977 GMC K25s, the following parts are the top sellers:
- Performance Exhaust Gasket Set for Enhanced Sealing and Durability (5020441) – $23.99
- Exhaust Stud Kit 3/8-16 x 2-1/2 In. and 3/8-16 x 3-1/4 In. (9110161) – $11.49
- Aluminum Exhaust Gaskets for Intense Heat Resistance (6900015) – $48.99
What’s the price range for 1977 GMC K25 Exhaust Parts?
Exhaust Part prices for the 1977 GMC K25 start at $2.79 and go up to $799.99 for the most premium parts.
What’s the average price of a Exhaust Part for a 1977 GMC K25?
The average price for Exhaust Parts for the 1977 GMC K25 is $100.77. 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 GMC K25 model years?
What are the cheapest Exhaust Parts for my 1977 GMC K25?
The cheapest 1977 GMC K25 Exhaust Parts we carry in stock are:
- Donut Exhaust Pipe Flange Gasket: Fiber with Steel, Heat Resistant, Premium Materials (18370067) – $2.79
- Exhaust Clamp (11012137) – $2.99
- Exhaust Clamp (11012223) – $2.99
- Exhaust Pipe Flange Gasket (5185076) – $3.99
- Exhaust Pipe Flange Gasket (5185157) – $3.99
What are the top-rated Exhaust Parts that fit the 1977 GMC K25?
Out of 346 reviews by customers, our 1977 GMC K25 Exhaust Parts have an average customer rating of . These are some of the highest-rated Exhaust Part types for the 1977 GMC K25 and their top-rated products:
- Exhaust System Kits
- Dual Competition Header Back Exhaust System Kit (22313201) – $325.99
- Exhaust Fittings
- Dual Competition Header Back Exhaust System Kit (22313201) – $325.99
- Exhaust Gaskets
- Dual Competition Header Back Exhaust System Kit (22313201) – $325.99
What types of Exhaust Parts do you sell for my 1977 GMC K25?
As of 11/2/25, these are some of the most in-demand types of Exhaust Parts for a 1977 GMC K25:
Can I get help with 1977 GMC K25 Exhaust Part orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about GMC Exhaust Parts and more.
What is your return policy for GMC K25 Exhaust Parts?
Advance Auto Parts keeps returns simple. For new GMC K25 Exhaust Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
