2004 Chevrolet Impala Exhaust Parts

Essential 2004 Chevrolet Impala Exhaust Parts

MagnaFlow – Standard Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.94015)

Standard Grade Federal / EPA Compliant Universal Catalytic Converter

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$126.99
MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 94015 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 – CalCat Catalytic Converter- CARB Certified, Universal / Fabrication Needed (Part No.84206)

CalCat Catalytic Converter- CARB Certified, Universal / Fabrication Needed

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$248.99
Designed, tested and validated for assured compliance to meet CARB standards, Walker® CalCat® Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.

Product Features:
  • CARB COMPLIANT — For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state’s aftermarket converter regulations.
  • SUPERIOR TECHNOLOGY — Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)
  • CONSISTENT PERFORMANCE — Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
  • DURABLE — Features stainless-steel body with aluminized pipe and heat shields for durability
  • FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
  • BUY WITH CONFIDENCE — Backed by Walker’s 50,000-mile/80,000-kilometer emissions and structural integrity warranty
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Elring – Exhaust Seal Ring (Part No.H4002210057ELR)

Exhaust Seal Ring

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$13.02
Exhaust Seal Ring

Felpro – Exhaust Pipe Flange Gasket (Part No.61054)

Exhaust Pipe Flange Gasket

from

$14.99
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.8592)

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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AP Exhaust – Exhaust Pipe Gasket (Part No.H40061323273APE)

Exhaust Pipe Gasket

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$10.44
Exhaust Pipe Gasket

FELPRO – Exhaust Pipe Gasket (Part No.H4006977394FEL)

Exhaust Pipe Gasket

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$6.42
Exhaust Pipe Gasket

Walker – Intermediate Pipe Aluminized 43.75" (Part No.44821)

Intermediate Pipe Aluminized 43.75"

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$41.49
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 – Tail Pipe Aluminized 61.125" (Part No.46550)

Tail Pipe Aluminized 61.125"

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$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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Mr. Gasket – Aluminum Exhaust Gasket (Part No.7401G)

Aluminum Exhaust Gasket

from

$40.99
What sets us apart as a company in the automotive industry? Many things come to mind, but most importantly is our knowledgeable team of employees. They are qualified and dedicated professionals who are experts in the automotive industry, and most are racers and enthusiasts themselves, including Mr. Gasket’s President, Mr. Bob Romanelli. People with first-hand interest and knowledge of this industry, who create and apply new concepts based not only on research and numbers, but on personal experience and hands-on know-how. Our staff of enthusiasts apply their knowledge to product engineering, research and development, product management, and marketing services. Members of our technical service group have an average tenure exceeding fifteen years. That’s not just dedication to a career, that’s commitment to something they truly believe in.

Product Features:
  • Withstands intense exhaust heat
  • Resists deteriorating
  • Easy removal for disassembly
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Mr. Gasket – Ultra Seal; Exhaust Gasket Set (Part No.5904)

Ultra Seal; Exhaust Gasket Set

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$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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BRExhaust – Exhaust Clamp (Part No.250-058)

Exhaust Clamp

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$6.49
Sourcing mounting parts from the manufacturer that designs and makes the exhaust system is the only way to guarantee the perfect fit. That’s why, whilst developing the exhaust system, BRExhaust also develops the installation hardware to the same standards.

Product Features:
  • whilst developing the exhaust system
  • BRExhaust also develops the installation hardware to the same standards.
  • Manufactured from quality materials to ensure maximum durability
  • Proper fit and functionality to finish your install
  • Perfect, gas-tight performance
  • Exhaust accessory that facilitates a complete installation process.
  • Built to OEM specifications
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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

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$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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Dorman – Exhaust Manifold Crossover Pipe (Part No.H6020367541DOR)

Exhaust Manifold Crossover Pipe

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$361.55
More like a complete kit than a single part, Dorman’s Exhaust Crossover Pipe includes all necessary gaskets and hardware for a complete installation. Since this part is a direct replacement, the exact fit adds another layer of efficiency and convenience.

Product Features:
  • Comes with two flange bolts and one flange gasket per side for ease of installation
  • Rust-resistant for long-lasting performance
  • Corrosion-resistant for extended durability
  • A rigorous quality inspection has been undertaken to ensure that this part conforms to product standards
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Walker – Hanger Length 4 (Part No.35183)

Hanger Length 4

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$15.99
Complete your exhaust repair with Walker® exhaust hangers. Designed with OE-style features to support undercar exhaust components, Walker hangers are manufactured from durable and robust material for long service life.

Product Features:
  • KEEPS EXHAUST PARTS IN PLACE — Designed to support undercar exhaust components
  • OE DESIGN — Designed with OE-style features for easy installation
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
  • PREMIUM MATERIALS — Made from quality steel for durability and long life
  • BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
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Dorman – Help – Exhaust Stud Kit – 3/8-16 x 3-5/16 In. (Part No.03106)

Exhaust Stud Kit - 3/8-16 x 3-5/16 In.

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$11.29
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.

Product Features:
  • Direct replacement 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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MagnaFlow – Street Series Cat-Back Performance Exhaust System (Part No.16729)

Street Series Cat-Back Performance Exhaust System

from

$1114.99
The MagnaFlow Street Series Cat-Back Performance Exhaust System 16729 brings out the personality of your 3.4L, 3.8L 2000-2005 Chevrolet with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 2.5in. main piping and 3 Straight-Through mufflers ending in a Dual Split Rear exit with 3.5in. Polished Welded-On Double Wall Angle Cut Folded Edge tips, this Chevrolet exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Chevrolet’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 16729 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 16729 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s 1-year limited finish warranty and limited lifetime construction warranty.

Product Features:
  • Dyno-proven performance
  • Durable corrosion-resistant stainless steel construction
  • CNC precision robotic manufacturing techniques
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MagnaFlow – Street Series Cat-Back Exhaust System: Polished Tips, Stainless Steel, Designed for Power and Sound (Part No.16708)

Street Series Cat-Back Exhaust System: Polished Tips, Stainless Steel, Designed for Power and Sound

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$1211.99
The Street Series Stainless Performance Exhaust system delivers dyno proven power with a comfortable interior sound and performance exterior sound.

Product Features:
  • All Mandrel Bent Tubing
  • 409 Stainless Steel Construction
  • Increased Horsepower and Torque
  • Made in USA
  • Moderate Exterior Sound with Mild Interior Sound
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Walker – Exhaust 21398 Exhaust Resonator (Part No.21398)

Exhaust 21398 Exhaust Resonator

from

$107.99
Designed to fit, perform and sound like the original system, Walker® resonators use precise tuning technologies to deliver excellent flow characteristics and OE-style sound.

Product Features:
  • RESISTS CORROSION — Durable aluminized steel construction and helps reduce corrosion
  • FACTORY SOUND — OE-style louvered tubes (where applicable) help reduce radiated noise for factory-style sound
  • FLEXIBLE SOLUTION — Customizable design for easy fitment and may require specialized fabrication and/or welding for installation
  • STRONG AND DURABLE — Features thick OE-style flanges, hardware and brackets for strength
  • GET MORE MILES FROM YOUR RESONATOR — Engineered to fit, perform and sound like the original system
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Walker – Exhaust 21569 Exhaust Resonator (Part No.21569)

Exhaust 21569 Exhaust Resonator

from

$95.99
Designed to fit, perform and sound like the original system, Walker® resonators use precise tuning technologies to deliver excellent flow characteristics and OE-style sound.

Product Features:
  • RESISTS CORROSION — Durable aluminized steel construction and helps reduce corrosion
  • FACTORY SOUND — OE-style louvered tubes (where applicable) help reduce radiated noise for factory-style sound
  • FLEXIBLE SOLUTION — Customizable design for easy fitment and may require specialized fabrication and/or welding for installation
  • STRONG AND DURABLE — Features thick OE-style flanges, hardware and brackets for strength
  • GET MORE MILES FROM YOUR RESONATOR — Engineered to fit, perform and sound like the original system
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Walker – SoundFX Muffler, Universal/ Fabrication Needed (Part No.18101)

SoundFX Muffler, Universal/ Fabrication Needed

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$85.99
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:
  • 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/or 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
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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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Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-206)

Direct Fit Exhaust Manifold: With Heat Shield

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$92.99
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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Hooker Headers – Competition Header (Part No.2455-2HKR)

Competition Header

from

$951.99
Competition Header

Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-245)

Direct Fit Exhaust Manifold: With Heat Shield

from

$191.99
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 – Exhaust 35725 Exhaust System Hanger Insulator (Part No.35725)

Exhaust 35725 Exhaust System Hanger Insulator

from

$6.99
Complete your exhaust repair with Walker® insulators. Available in a variety of styles and sizes, they’re designed to work with Walker aftermarket replacement parts for quick and easy installation.

Product Features:
  • OE DESIGN — Designed with OE-style features for easy installation and fit
  • PREMIUM MATERIALS — Made from high-quality materials for durability and long life
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
  • KEEPS EXHAUST PARTS IN PLACE — Designed to support undercar exhaust components
  • BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
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Walker – Exhaust 35352 Exhaust System Hanger Insulator (Part No.35352)

Exhaust 35352 Exhaust System Hanger Insulator

from

$11.29
Complete your exhaust repair with Walker® insulators. Available in a variety of styles and sizes, they’re designed to work with Walker aftermarket replacement parts for quick and easy installation.

Product Features:
  • OE DESIGN — Designed with OE-style features for easy installation and fit
  • PREMIUM MATERIALS — Made from high-quality materials for durability and long life
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
  • KEEPS EXHAUST PARTS IN PLACE — Designed to support undercar exhaust components
  • BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
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Walker – Exhaust 35460 Exhaust System Hanger Insulator (Part No.35460)

Exhaust 35460 Exhaust System Hanger Insulator

from

$6.79
Complete your exhaust repair with Walker® insulators. Available in a variety of styles and sizes, they’re designed to work with Walker aftermarket replacement parts for quick and easy installation.

Product Features:
  • OE DESIGN — Designed with OE-style features for easy installation and fit
  • PREMIUM MATERIALS — Made from high-quality materials for durability and long life
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
  • KEEPS EXHAUST PARTS IN PLACE — Designed to support undercar exhaust components
  • BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
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2004 Chevrolet Impala Exhaust Parts

You count on your 2004 Chevrolet Impala 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 53 Exhaust Parts ranging in price from $2.49 to $1,990.99, you’re sure to find everything you need for your 2004 Chevrolet Impala.

Brands matter. If you want to shop a specific Exhaust Parts brand, we stock 9 different brands like Walker, Felpro, and Dorman. 2004 Chevrolet Impala Exhaust Parts start as low as $2.49!

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 833 extensive product reviews on 2004 Chevrolet Impala Exhaust Parts. Some of the top-rated Exhaust Parts products we carry are Catalytic Converter- EPA Ultra, Direct Replacement, No Fabrication Needed with 4.4 stars and HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter with 3.8 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 2004 Chevrolet Impala below to get started!

Top-Rated Exhaust Parts Brands For Your 2004 Chevrolet Impala

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 2004 Chevrolet Impala running right for years to come. In our inventory you’ll find brands like Walker, Felpro, Dorman, and even more.

Popular MAHLE Original Exhaust Parts

You’ll find popular MAHLE Original brand products across Exhaust Gaskets. All are waiting to get your 2004 Chevrolet Impala back on the road. Some of the top-rated MAHLE Original products in these categories are:
EXHAUST MANIFOLD SET
from $20.99
(1)
EXHAUST MANIFOLD SET
Exhaust Manifold Gaskets

Top-Rated Walker Exhaust Parts


If Walker are what you’re looking for, our inventory holds plenty. We stock Walker brand Exhaust Parts for your 2004 Chevrolet Impala, and some of our most reviewed Walker parts include:
Exhaust 35460 Exhaust System Hanger Insulator
from $6.79
(53)
Exhaust 35460 Exhaust System Hanger Insulator
Exhaust System Insulators
Exhaust 21398 Exhaust Resonator
from $107.99
(26)
Exhaust 21398 Exhaust Resonator
Exhaust Resonators

FAQs for 2004 Chevrolet Impala Exhaust Parts

What are the most purchased Exhaust Parts for the 2004 Chevrolet Impala?

Out of 53 Exhaust Parts for the 2004 Chevrolet Impala, the most popular in our inventory are:
Exhaust 35352 Exhaust System Hanger Insulator
from $11.29
(13)
Exhaust 35352 Exhaust System Hanger Insulator
Exhaust System Insulators

What are the top-rated 2004 Chevrolet Impala Exhaust Parts?

Top-rated Exhaust Parts for your 2004 Chevrolet Impala based on customer reviews/ratings are:
Catalytic Converter- EPA Ultra, Direct Replacement, No Fabrication Needed
from $404.99
(14)
Catalytic Converter- EPA Ultra, Direct Replacement, No Fabrication Needed
“I always love Walker Direct Fit cat. converters. An easy install every time.”
HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
from $391.99
(13)
HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
“Hey it works great”
Catalytic Converter- EPA Ultra, Universal/ Fabrication Needed
from $184.99
(12)
Catalytic Converter- EPA Ultra, Universal/ Fabrication Needed
“Good product but very little room for error when cutting off old catalytic converter and matching up to new.”