GMC K25 Performance Exhaust Products

Your One-Stop Shop For Trusted GMC K25 Performance Exhaust Products

If you’re in search of GMC K25 Performance Exhaust Products aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 31 Performance Exhaust Products from top brands with prices ranging from $20.49 to $511.99.

Beyond great prices, we stock trusted brands manufacturing all types of Performance Exhaust Products for your GMC K25.

And don’t forget to read customer reviews across all Performance Exhaust Products categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Performance Exhaust Products have to cost top dollar, and we prove it. Browse our top GMC K25 Performance Exhaust Products below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Please Select your Vehicle to See Exact Fit Parts

Essential GMC K25 Performance Exhaust Products

Flowtech – Standard Header (Part No.11506FLT)

Standard Header

from

$255.99


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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Flowtech – Exhaust Manifold/Header (Part No.11530FLT)

Exhaust Manifold/Header

from

$261.99
Exhaust Manifold/Header

Hooker Headers – LS1 Swap Headers for 66-72 Chevelle, El Camino & More (Part No.2453HKR)

LS1 Swap Headers for 66-72 Chevelle, El Camino & More

from

$329.99
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:
  • High Performance
  • Affordable
  • Durable 16 Gauge Material
  • Welds Easier
  • Lasts Longer
  • Heat Cured
  • High Heat Resistant
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Flowtech – Ceramic Header (Part No.31500FLT)

Ceramic Header

from

$511.99


Product Features:
  • Fuel Economy From The Engine
  • Leak Test For Max Performance
  • Ceramic Headers
  • Rust And Corrosion Resistance
  • Mandrel-Formed Power Plenum
  • Leakproof O-Ringed Port Seals
  • Include All Mounting Hardware
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Mr. Gasket – Copper Seal; Exhaust Gasket Set (Part No.7157)

Copper Seal; Exhaust Gasket Set

from

$71.99
Copperseal exhaust gaskets are unique gaskets made from .043 inch solid copper. They feature an embossed O-ring design for a leak proof seal. They won’t shrink, deteriorate or blowout. Header bolts stay tight. Ideal for motor homes and towing.

Product Features:
  • Will Not Shrink/Deteriorate
  • Creates A Tight Leak Proof Seal
  • Helps Lower Under hood Temps
  • Seals Irregular Surfaces
  • Seals Slightly Damaged Surface
  • Ideal For Tow Vehicles
  • Ideal For Motor Homes
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Mr. Gasket – Ultra Seal: Exhaust Gasket Set (Part No.5902)

Ultra Seal: Exhaust Gasket Set

from

$37.99
Manufactured from high-temperature steel core/graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate gasket failure. Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head.

Product Features:
  • Withstands Intense Exhaust Heat
  • Graphite-Impregnated Facing
  • Steel Expanded Metal Core
  • Superior Tensile Strength
  • Resists Deteriorating
  • Anti-stick Properties
  • Easy Removal For Disassembly
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FEL-PRO Performance – Exhaust Manifold Gasket Set (Part No.1448)

Exhaust Manifold Gasket Set

from

$35.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Performance exhaust header gasket consisting of a high-density fiber facing material attached to both sides of a perforated steel core.
  • Resists blowout and burnout from high-temperature exhaust and is far stronger than basic paper gaskets.
  • Anti-stick coating permits motion without damaging the gasket and makes it easier to remove the gasket for future engine service.
  • Slotted bolt holes allow for easier header installation.
  • Not intended for use in emission controlled vehicles.
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Mr. Gasket – Exhaust Gasket Set (Part No.150)

Exhaust Gasket Set

from

$35.99
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:
  • High-Temperature Exhaust Material
  • Withstands Extreme Exhaust Heat
  • Provides Excellent Sealing And Durability
  • Superior Tensile Strength
  • Resists Deteriorating
  • Provides Excellent Torque Retention
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Mr. Gasket – Exhaust Gasket Set (Part No.152A)

Exhaust Gasket Set

from

$35.99
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:
  • 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
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Mr. Gasket – Exhaust Gasket: High-Temperature Protection, Durability, and Reliable Sealing (Part No.150A)

Exhaust Gasket: High-Temperature Protection, Durability, and Reliable Sealing

from

$32.49
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:
  • 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
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Flowtech – Header Gasket Set (Part No.99161FLT)

Header Gasket Set

from

$20.49
Header Gasket Set

FEL-PRO Performance – Exhaust Manifold Gasket Set (Part No.1410)

Exhaust Manifold Gasket Set

from

$37.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Performance exhaust header gasket consisting of a high-density fiber facing material attached to both sides of a perforated steel core.
  • Resists blowout and burnout from high-temperature exhaust and is far stronger than basic paper gaskets.
  • Anti-stick coating permits motion without damaging the gasket and makes it easier to remove the gasket for future engine service.
  • Slotted bolt holes allow for easier header installation.
  • Not intended for use in emission controlled vehicles.
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Mr. Gasket – Mls Exhaust Gasket (Part No.4816G)

Mls Exhaust Gasket

from

$42.99
Multi-Layered Steel (MLS) exhaust gaskets are designed for extreme cylinder pressures produced by high horsepower high compression turbo-charged, supercharged and nitrous oxide injected engines. Manufactured from three stainless steel layers, they resist corrosion, will not burn through or push out and maintain maximum fastener torque retention. Stress formed inner and outer layer embossments act like springs that rebound under exhaust flange clamp load, creating force to seal extreme exhaust pressures. Total gasket thickness .075 inch. Will not deteriorate from scrubbing action caused by different expansion rates in aluminum and steel materials.

Product Features:
  • Designed for extreme cylinder pressures by high horsepower-high compression turbocharged, supercharged and nitrous oxide injected engines
  • Manufactured from three stainless steel layers, they resist corrosion, will not burn through or push out and maintain maximum fastener torque retention
  • Stress formed inner and outer layer embossments act like springs that rebound under flange clamp load, creating force to seal extreme pressures
  • Will not deteriorate from scrubbing action caused by different expansion rates in aluminum and steel materials
  • Total gasket thickness .075 inch
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FEL-PRO Performance – Exhaust Manifold Gasket Set (Part No.1444)

Exhaust Manifold Gasket Set

from

$31.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Performance exhaust header gasket consisting of a high-density fiber facing material attached to both sides of a perforated steel core.
  • Resists blowout and burnout from high-temperature exhaust and is far stronger than basic paper gaskets.
  • Anti-stick coating permits motion without damaging the gasket and makes it easier to remove the gasket for future engine service.
  • Slotted bolt holes allow for easier header installation.
  • Not intended for use in emission controlled vehicles.
See More

Spectre – Alternator Bracket Kit 69-86 Chevy (Part No.47293)

Alternator Bracket Kit 69-86 Chevy

from

$42.99
This Spectre Alternator Bracket Kit was designed for 1969-1986 Chevrolet Small Block engines with a long water pump. This triple chrome-plated kit includes two brackets and the hardware needed to mount your alternator in a clean and professional way.

Product Features:
  • Designed for ’69-’86 Chevrolet Small Block engines with long water pump
  • Kit includes two brackets and mounting hardware
  • Triple chrome plated
  • Manufactured with high quality materials
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Mr. Gasket – Header Bolt Set (Part No.2211G)

Header Bolt Set

from

$51.99
Made of high quality stainless steel. These bolts will brighten up your hot rod, or improve the looks of your race car.

Product Features:
  • Bright Ball Burnish Finish
  • Made From 304 Stainless
  • Compact Hex Head Is Ideal Where Space Is Limited
  • 16 per Package
  • Resist corrosion and provides a clean professional appearance
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Mr. Gasket – Header Bolt Set (Part No.2210G)

Header Bolt Set

from

$43.49
Made of high quality stainless steel. These bolts will brighten up your hot rod, or improve the looks of your race car.

Product Features:
  • Bright Ball Burnish Finish
  • Made From 304 Stainless
  • Compact Hex Head Is Ideal Where Space Is Limited
  • 12 Per Set
  • Resist corrosion and provides a clean professional appearance
See More

Mr. Gasket – Alternator Bracket (Part No.9850)

Alternator Bracket

from

$26.99
Hold your alternator securely in place with Mr. Gasket chrome alternator bracket. Chrome plated heavy gauge steel for long lasting good looks. Must be used with #9852.

Product Features:
  • Chrome Plated Steel
  • F-Style
  • Heavy Gauge Steel Construction
  • Fits Small Block Chevy 265-400 CID
  • Must Be Used With Part 9852
See More

Performance Exhaust Products Brands You Can Trust For Your GMC K25

5 trusted brands of Performance Exhaust Products line our shelves, ready to help keep your GMC K25 running smooth. Below are some of the most popular brands and their top Performance Exhaust Products offerings:

Popular FEL-PRO Performance Performance Exhaust Products

FEL-PRO Performance products for the GMC K25 span several categories. Some of the highest-rated FEL-PRO Performance Performance Exhaust Products that will fit your GMC K25 are:
Exhaust Manifold Gasket Set
from $31.49
(2)
Exhaust Manifold Gasket Set
Performance Exhaust Manifold Gaskets

Top GMC K25 Performance Exhaust Products from Mr. Gasket

Your GMC K25 will be purring again thanks to Mr. Gasket brand Performance Exhaust Products available for online order or in-store pick up. Popular Mr. Gasket parts include:
Exhaust Gasket: High-Temperature Protection, Durability, and Reliable Sealing
from $32.49
(4)
Exhaust Gasket: High-Temperature Protection, Durability, and Reliable Sealing
Performance Exhaust Manifold Gaskets
Alternator Bracket
from $26.99
(2)
Alternator Bracket
Performance Exhaust Header Hardware
Ultra Seal: Exhaust Gasket Set
from $45.49
(1)
Ultra Seal: Exhaust Gasket Set
Performance Exhaust Manifold Gaskets

Most Purchased GMC K25 Performance Exhaust Products from Hooker Headers

When you buy the most frequently purchased Hooker Headers brand Performance Exhaust Products, you can be confident it will be the right part for your GMC K25. Here are the Hooker Headers Performance Exhaust Products Advanced Auto customers buy the most:
LS1 Swap Headers for 66-72 Chevelle, El Camino & More
from $329.99
(2)
LS1 Swap Headers for 66-72 Chevelle, El Camino & More
Performance Exhaust Headers
Exhaust Manifold/Header
from $261.99
This product is not rated
Exhaust Manifold/Header
Performance Exhaust Headers
Exhaust Gasket: High-Temperature Protection, Durability, and Reliable Sealing
from $32.49
(4)
Exhaust Gasket: High-Temperature Protection, Durability, and Reliable Sealing
Performance Exhaust Manifold Gaskets

FAQs for GMC K25 Performance Exhaust Products

What are the most purchased Performance Exhaust Products for the GMC K25?

Out of 31 Performance Exhaust Products for the GMC K25, the most popular in our inventory are:
Header Bolt Set
from $43.49
This product is not rated
Header Bolt Set
Performance Exhaust Header Hardware
Copper Seal; Exhaust Gasket Set
from $71.99
This product is not rated
Copper Seal; Exhaust Gasket Set
Performance Exhaust Manifold Gaskets
Exhaust Gasket Set
from $35.99
This product is not rated
Exhaust Gasket Set
Performance Exhaust Manifold Gaskets

What are the top-rated GMC K25 Performance Exhaust Products?

Top-rated Performance Exhaust Products for your GMC K25 based on customer reviews/ratings are:
LS1 Swap Headers for 66-72 Chevelle, El Camino & More
from $329.99
(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”
Ceramic Header
from $511.99
(2)
Ceramic Header
“Great product, especially when used with stage 8 locking bolts.”
Real-Seal; Header Gasket
from $95.99
(1)
Real-Seal; Header Gasket
“Great product”