1998 Infiniti QX4 Exhaust Parts

Essential Exhaust Parts for 1998 Infiniti QX4s

BRExhaust – Direct-Fit Premium Resonator Assembly (Part No.278-713)

Direct-Fit Premium Resonator Assembly

from

$174.99
BRExhaust direct-fit exhaust resonators are designed to install easily and help you retain the OE exhaust sound you are looking for. The resonator is engineered to optimally reduce unwanted noises and backpressure while protecting against corrosion. Aluminized steel construction ensures maximum durability.

Product Features:
  • Direct-fit configuration
  • Saves installation time by eliminating the need for the labor intensive bending and welding required with split system exhaust components
  • Optimal noise reduction
  • Low backpressure and corrosion protection
  • Constructed using 16-gauge aluminized steel
  • Aluminized steel construction for maximum durability
  • Constructed to help reduce flex and withstand vehicle vibration
See More

Walker – CalCat CARB Direct Fit Catalytic Converter (Part No.81753)

CalCat CARB Direct Fit Catalytic Converter

from

$1071.99
Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Direct-Fit Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles and delivers a precise OE-style fit.

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.
  • DIRECT-FIT DESIGN — Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn’t require specialized fabrication or welding
  • 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
  • STRONG AND DURABLE — Features thick OE-style flanges, hangers and brackets for strength and stainless-steel body with aluminized pipe and heat shields for durability
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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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Original Equipment – Exhaust Flange Nut (Part No.H10081094848OEA)

Exhaust Flange Nut

from

$2.17
Exhaust Flange Nut

BRExhaust – Direct-Fit Premium Pipe (Part No.748-027)

Direct-Fit Premium Pipe

from

$72.99
BRExhaust exhaust pipes are manufactured to exacting standards and are based on the original OEM design for a guaranteed perfect fit. All BRExhaust pipes are made from aluminized steel. The exact fit, easy installation, durability and enduring functionality of BRExhaust’s OE replacement exhaust pipes instantly equip your ride with optimally restored emission control.

Product Features:
  • Manufactured according to strict OE standards
  • Sturdy design featuring premium-grade materials
  • Precise fitment
  • Hassle-free installation and functionality verified by comprehensive testing procedures
  • Easy installation
  • Direct-fit exhaust system component that saves installation time
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Flowtech – Terminator; Exhaust Tips (Part No.59905FLT)

Terminator; Exhaust Tips

from

$85.99


Product Features:
  • Show Quality Chrome Platinum
  • Durable Black Finish
  • Can Be Welded Or Clamped
  • Complete The System
  • Glass-Packed Resonators
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Walker – Exhaust Pipe Flange Gasket (Part No.31397)

Exhaust Pipe Flange Gasket

from

$6.79
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:
  • 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
See More

Walker – Exhaust Pipe Flange Gasket (Part No.31311)

Exhaust Pipe Flange Gasket

from

$3.29
Complete your exhaust repair with Walker gaskets and flanges. Available in a variety of styles and sizes, they¿re designed to work with OE exhaust components and Walker aftermarket replacement parts.

Product Features:
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and 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
See More

Walker – Direct Fit Exhaust Resonator and Pipe Assembly 2" Outlet (OD) (Part No.54084)

Direct Fit Exhaust Resonator and Pipe Assembly 2" Outlet (OD)

from

$151.99
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:
  • EASY TO INSTALL — Meticulous pipe routing and OE-style hardware, flanges, and brackets for fast, easy installation
  • 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 quality
  • STRONG AND DURABLE — Features thick OE-style flanges, hardware and brackets for strength
  • GET MORE MILES FROM YOUR RESONATOR ASSEMBLY — Engineered to fit, perform and sound like the original system
See More

Walker – Direct Fit Exhaust Resonator and Pipe Assembly (Part No.53463)

Direct Fit Exhaust Resonator and Pipe Assembly

from

$181.99
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:
  • EASY TO INSTALL — Meticulous pipe routing and OE-style hardware, flanges, and brackets for fast, easy installation
  • 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 quality
  • STRONG AND DURABLE — Features thick OE-style flanges, hardware and brackets for strength
  • GET MORE MILES FROM YOUR RESONATOR ASSEMBLY — Engineered to fit, perform and sound like the original system
See More

Ishino Stone – Exh. Man. to Pipe Ga (Part No.H400331407ISH)

Exh. Man. to Pipe Ga

from

$4.44
Exh. Man. to Pipe Ga

BRExhaust – Direct-Fit Premium Muffler Assembly – 283-713 (Part No.283-713)

Direct-Fit Premium Muffler Assembly - 283-713

from

$305.99
BRExhaust Universal Exhaust MufflerThis BRExhaust replacement exhaust is engineered based on the original OEM design to ensure reliability, durability and performance. The ease of installation will save you time and effort, getting you back out on the road sooner. Each muffler features thicker hangers for added strength and fully welded, perforated tubes to guarantee a long service life.

Product Features:
  • Based on the original OEM design for a guaranteed perfect fit_x000d__x000d_
  • No welds inside the silencer
  • Easy installation
  • Aluminized steel construction for maximum durability
  • Constructed to reduce flex and withstand vehicle vibration
  • External drain hole extends muffler life by allowing moisture to escape
  • Uniform flow holes facilitate even distribution of exhaust flow through the muffler’s interior
See More

BRExhaust – Direct-Fit Premium Resonator Assembly (Part No.278-375)

Direct-Fit Premium Resonator Assembly

from

$175.99
BRExhaust direct-fit exhaust resonators are designed to install easily and help you retain the OE exhaust sound you are looking for. The resonator is engineered to optimally reduce unwanted noises and backpressure while protecting against corrosion. Aluminized steel construction ensures maximum durability.

Product Features:
  • Direct-fit configuration
  • Saves installation time by eliminating the need for the labor intensive bending and welding required with split system exhaust components
  • Optimal noise reduction
  • Low backpressure and corrosion protection
  • Constructed using 16-gauge aluminized steel
  • Aluminized steel construction for maximum durability
  • Constructed to help reduce flex and withstand vehicle vibration
See More

Dorman – Double Ended Stud – M10-1.50 x 27mm and M10-1.50 x 12mm (Part No.29224)

Double Ended Stud - M10-1.50 x 27mm and M10-1.50 x 12mm

from

$6.29
This exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles. Made of quality materials, this hardware is engineered for reliable performance.

Product Features:
  • Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles.
  • Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
  • Durable construction – these parts are made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Dorman – Double Ended Stud – M8-1.25 x 16mm and M8-1.25 x 16mm (Part No.29203)

Double Ended Stud - M8-1.25 x 16mm and M8-1.25 x 16mm

from

$5.99
This exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles. Made of quality materials, this hardware is engineered for reliable performance.

Product Features:
  • Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles.
  • Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
  • Durable construction – these parts are made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Dorman – Help – Exhaust Stud Kit – M8-1.25 x 38mm (Part No.03109)

Exhaust Stud Kit - M8-1.25 x 38mm

from

$4.99
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
See More

BRExhaust – Exhaust Flange Gasket (Part No.256-535)

Exhaust Flange Gasket

from

$6.49
BRExhaust replacement exhaust brackets make repairs easy. Each gasket has been engineered to according to OE standards to ensure a gas-tight connection and precise fitment. Utilizing the OE specifications also makes installation easy.

Product Features:
  • Designed to facilitate hassle-free exhaust repair
  • Precise fitment
  • Manufactured from quality materials to ensure maximum durability
  • Designed for a leak free connection
  • OE structure and design
  • Built to OEM specifications
  • Secure gas-tight connection
See More

Felpro – Exhaust Pipe Flange Gasket (Part No.60674)

Exhaust Pipe Flange Gasket

from

$4.79
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
See More

BRExhaust – Exhaust Flange Gasket (Part No.256-1117)

Exhaust Flange Gasket

from

$9.99
BRExhaust replacement exhaust brackets make repairs easy. Each gasket has been engineered to according to OE standards to ensure a gas-tight connection and precise fitment. Utilizing the OE specifications also makes installation easy.

Product Features:
  • Designed to facilitate hassle-free exhaust repair
  • Precise fitment
  • Manufactured from quality materials to ensure maximum durability
  • Designed for a leak free connection
  • OE structure and design
  • Built to OEM specifications
  • Secure gas-tight connection
See More

Walker – Exhaust Pipe 1.75" Outlet (OD) (Part No.53109)

Exhaust Pipe 1.75" Outlet (OD)

from

$147.99
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
See More

Walker – Exhaust Pipe 1.75" Outlet (OD) (Part No.53393)

Exhaust Pipe 1.75" Outlet (OD)

from

$51.99
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
See More

Walker – Exhaust Pipe 1.75" Outlet (OD) (Part No.53394)

Exhaust Pipe 1.75" Outlet (OD)

from

$47.49
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
See More

Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-431)

Direct Fit Exhaust Manifold: With Heat Shield

from

$139.99
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
See More

Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-432)

Direct Fit Exhaust Manifold: With Heat Shield

from

$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
See More

Felpro – EXHAUST MANIFOLD GASKET SET (Part No.MS 91459)

EXHAUST MANIFOLD GASKET SET

from

$19.99
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
  • Contains all gaskets and seals to remove and replace exhaust manifold
See More

MAHLE Original – Exhaust Manifold Set (Part No.MS19259)

Exhaust Manifold Set

from

$28.49
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:
  • All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
  • MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
  • MAHLE gaskets is the leader in Domestic, Asian and European applications
  • The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
See More

Beck/Arnley – Exhaust Manifold Gasket (Part No.037-8031)

Exhaust Manifold Gasket

from

$27.49
Beck/Arnley parts meet foreign nameplate OE specifications for form, fit and function. Our product specialists work with a network of global sourcing partners so you can install the right part with confidence.

Product Features:
  • Matches OE form, fit and function
  • Made from premium materials
  • Quality construction for durability
  • Packaged in clear plastic for easy visibility and identification of all components
  • Application specific for this vehicle
See More

Victor Reinz – Exhaust Manifold Gasket Set (Part No.11-10719-01)

Exhaust Manifold Gasket Set

from

$19.49
As you would expect, extremely high temperatures are the sealing challenge for exhaust manifold gaskets. Victor Reinz has a long heritage of supplying manifold gaskets to original equipment vehicle manufacturers. Therefore, Victor Reinz exhaust manifold gaskets meet OE specifications on a wide range of vehicles, covering the most recent high-tech engine designs and going back decades to the muscle car era.

Product Features:
  • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
See More

Upgrade your 1998 Infiniti QX4 with Top-Quality Exhaust Parts

When it comes to maintaining or upgrading your 1998 Infiniti QX4, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Infiniti or enhancing its overall performance, Exhaust Parts are key to keeping your QX4 functioning at its best. At Advance Auto Parts, we offer a wide selection of 45 Exhaust Parts for the 1998 Infiniti QX4, designed to meet your needs without breaking the bank. From Exhaust Manifold and Header 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 1998 Infiniti QX4 at great prices. Our Exhaust Parts inventory for this model ranges from just $2.17 to $1,312.99, with an average price of $173.52. Our 45 Exhaust Parts in stock come from 14 trusted brands, so you’re sure to find the right part for your 1998 Infiniti QX4 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 1998 Infiniti QX4, we stock popular OEM and aftermarket Exhaust Parts from top names like FELPRO, Walker, Dorman, and more. FELPRO Exhaust Parts start at just $4.79 and boast an impressive 5 stars average rating from customers. Walker and Dorman also bring quality to the table, with Exhaust Parts available starting at $6.29, and at an average 4 stars rating. With 76 customer reviews and counting, our 1998 Infiniti QX4 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 1998 Infiniti QX4 is always ready to roll. We’re committed to providing you with everything you need to keep your QX4 in top shape, all in one place. Start shopping confidently below for your 1998 Infiniti QX4!

Best-Selling Exhaust Manifold and Headers for 1998 Infiniti QX4s

Enhance the driving experience in your Infiniti with 2 quality Exhaust Manifold and Header components, starting at $92.99.

Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-432)

Direct Fit Exhaust Manifold: With Heat Shield

from

$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
See More

Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-431)

Direct Fit Exhaust Manifold: With Heat Shield

from

$139.99
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
See More

Most Popular 1998 Infiniti QX4 Exhaust Pipes

Customize your Infiniti with 18 Exhaust Pipes products like Exhaust Pipe and Flange Gaskets, Exhaust Pipes, and Exhaust Resonator and Pipe Assemblies, all priced under $483.99.

Felpro – Exhaust Pipe Flange Gasket (Part No.60674)

Exhaust Pipe Flange Gasket

from

$4.79
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
See More

Felpro – Exhaust Pipe Flange Gasket (Part No.60835)

Exhaust Pipe Flange Gasket

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:
  • 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
See More

BRExhaust – Direct-Fit Premium Muffler Assembly – 285-187 (Part No.285-187)

Direct-Fit Premium Muffler Assembly - 285-187

from

$483.99
BRExhaust Universal Exhaust MufflerThis BRExhaust replacement exhaust is engineered based on the original OEM design to ensure reliability, durability and performance. The ease of installation will save you time and effort, getting you back out on the road sooner. Each muffler features thicker hangers for added strength and fully welded, perforated tubes to guarantee a long service life.

Product Features:
  • Based on the original OEM design for a guaranteed perfect fit_x000d__x000d_
  • No welds inside the silencer
  • Easy installation
  • Aluminized steel construction for maximum durability
  • Constructed to reduce flex and withstand vehicle vibration
  • External drain hole extends muffler life by allowing moisture to escape
  • Uniform flow holes facilitate even distribution of exhaust flow through the muffler’s interior
See More

Walker – Exhaust Pipe Flange Gasket (Part No.31534)

Exhaust Pipe Flange Gasket

from

$6.49
Complete your exhaust repair with Walker gaskets and flanges. Available in a variety of styles and sizes, they¿re designed to work with OE exhaust components and Walker aftermarket replacement parts.

Product Features:
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and 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
See More

BRExhaust – Exhaust Flange Gasket (Part No.256-792)

Exhaust Flange Gasket

from

$5.79
BRExhaust replacement exhaust brackets make repairs easy. Each gasket has been engineered to according to OE standards to ensure a gas-tight connection and precise fitment. Utilizing the OE specifications also makes installation easy.

Product Features:
  • Designed to facilitate hassle-free exhaust repair
  • Precise fitment
  • Manufactured from quality materials to ensure maximum durability
  • Designed for a leak free connection
  • OE structure and design
  • Built to OEM specifications
  • Secure gas-tight connection
See More

BRExhaust – Exhaust Flange Gasket (Part No.256-165)

Exhaust Flange Gasket

from

$6.49
BRExhaust replacement exhaust brackets make repairs easy. Each gasket has been engineered to according to OE standards to ensure a gas-tight connection and precise fitment. Utilizing the OE specifications also makes installation easy.

Product Features:
  • Designed to facilitate hassle-free exhaust repair
  • Precise fitment
  • Manufactured from quality materials to ensure maximum durability
  • Designed for a leak free connection
  • OE structure and design
  • Built to OEM specifications
  • Secure gas-tight connection
See More

BRExhaust – Exhaust Flange Gasket (Part No.256-535)

Exhaust Flange Gasket

from

$6.49
BRExhaust replacement exhaust brackets make repairs easy. Each gasket has been engineered to according to OE standards to ensure a gas-tight connection and precise fitment. Utilizing the OE specifications also makes installation easy.

Product Features:
  • Designed to facilitate hassle-free exhaust repair
  • Precise fitment
  • Manufactured from quality materials to ensure maximum durability
  • Designed for a leak free connection
  • OE structure and design
  • Built to OEM specifications
  • Secure gas-tight connection
See More

MAHLE Original – Catalytic Converter Gasket (Part No.F7480)

Catalytic Converter Gasket

from

$5.79
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:
  • All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
  • MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
  • MAHLE gaskets is the leader in Domestic, Asian and European applications
  • The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
See More

Walker – Direct Fit Exhaust Resonator and Pipe Assembly 2" Outlet (OD) (Part No.54084)

Direct Fit Exhaust Resonator and Pipe Assembly 2" Outlet (OD)

from

$151.99
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:
  • EASY TO INSTALL — Meticulous pipe routing and OE-style hardware, flanges, and brackets for fast, easy installation
  • 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 quality
  • STRONG AND DURABLE — Features thick OE-style flanges, hardware and brackets for strength
  • GET MORE MILES FROM YOUR RESONATOR ASSEMBLY — Engineered to fit, perform and sound like the original system
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BRExhaust – Direct-Fit Premium Pipe (Part No.748-027)

Direct-Fit Premium Pipe

from

$72.99
BRExhaust exhaust pipes are manufactured to exacting standards and are based on the original OEM design for a guaranteed perfect fit. All BRExhaust pipes are made from aluminized steel. The exact fit, easy installation, durability and enduring functionality of BRExhaust’s OE replacement exhaust pipes instantly equip your ride with optimally restored emission control.

Product Features:
  • Manufactured according to strict OE standards
  • Sturdy design featuring premium-grade materials
  • Precise fitment
  • Hassle-free installation and functionality verified by comprehensive testing procedures
  • Easy installation
  • Direct-fit exhaust system component that saves installation time
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HJS – Exhaust Gasket (Part No.H400035454HJS)

Exhaust Gasket

from

$4.31
Exhaust Gasket

BRExhaust – Direct-Fit Premium Resonator Assembly (Part No.278-375)

Direct-Fit Premium Resonator Assembly

from

$175.99
BRExhaust direct-fit exhaust resonators are designed to install easily and help you retain the OE exhaust sound you are looking for. The resonator is engineered to optimally reduce unwanted noises and backpressure while protecting against corrosion. Aluminized steel construction ensures maximum durability.

Product Features:
  • Direct-fit configuration
  • Saves installation time by eliminating the need for the labor intensive bending and welding required with split system exhaust components
  • Optimal noise reduction
  • Low backpressure and corrosion protection
  • Constructed using 16-gauge aluminized steel
  • Aluminized steel construction for maximum durability
  • Constructed to help reduce flex and withstand vehicle vibration
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Walker – Exhaust Pipe 1.75" Outlet (OD) (Part No.53109)

Exhaust Pipe 1.75" Outlet (OD)

from

$147.99
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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BRExhaust – Direct-Fit Premium Resonator Assembly (Part No.760-715)

Direct-Fit Premium Resonator Assembly

from

$164.99
BRExhaust direct-fit exhaust resonator and pipe assemblies are designed to install easily and help you retain the OE exhaust sound you are looking for. Increase horsepower and torque with this corrosion resistant direct-fit component. Aluminized steel construction ensures maximum durability.

Product Features:
  • Manufactured according to strict OE standards
  • Sturdy design featuring premium-grade materials
  • Precise fitment
  • Hassle-free installation and functionality verified by comprehensive testing procedures
  • Easy installation
  • Direct-fit exhaust system component that saves installation time
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Autopart International Inc – Exhaust Pipe Gasket (Part No.H40062000940API)

Exhaust Pipe Gasket

from

$11.40
Exhaust Pipe Gasket

BRExhaust – Exhaust Flange Gasket (Part No.256-1117)

Exhaust Flange Gasket

from

$9.99
BRExhaust replacement exhaust brackets make repairs easy. Each gasket has been engineered to according to OE standards to ensure a gas-tight connection and precise fitment. Utilizing the OE specifications also makes installation easy.

Product Features:
  • Designed to facilitate hassle-free exhaust repair
  • Precise fitment
  • Manufactured from quality materials to ensure maximum durability
  • Designed for a leak free connection
  • OE structure and design
  • Built to OEM specifications
  • Secure gas-tight connection
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Nippon Reinz – Catalytic Converter Gasket (Part No.H4001176463NRZ)

Catalytic Converter Gasket

from

$9.64
NIPPON REINZ engineers work with OEMs to develop complete engine sealing solutions for gasoline, diesel, and alternative energy vehicles. We employ custom sealing solutions through our expert problem solving utilizing our regional research and development centers. As an Integral Partner with Virtually Every major vehicle and engine manufacturer worldwide, NIPPON REINZ offers a comprehensive range of sealing Innovative Systems, INCLUDING Head gaskets, Heat shields, sealing modules, secondary gaskets, Valve stem Seals, and transmission components.
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Victor Reinz – Exhaust Pipe Flange Gasket (Part No.71-15132-00)

Exhaust Pipe Flange Gasket

from

$6.99
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:
  • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
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Top Picks for 1998 Infiniti QX4 Catalytic Converters

Upgrade Infiniti QX4s with top-quality Catalytic Converters parts, including 15 OEM and aftermarket selections for your 1998 model.

Walker – Exhaust Pipe Flange Gasket (Part No.31397)

Exhaust Pipe Flange Gasket

from

$6.79
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:
  • 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
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Mahle – Exhaust Gasket (Part No.H4000176633MAH)

Exhaust Gasket

from

$12.81
Exhaust Gasket

MagnaFlow – HM Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.99204HM)

HM Grade Federal / EPA Compliant Universal Catalytic Converter

from

$179.99
MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99204HM 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 OBDII Federally registered vehicles with Federal/EPA Emission systems.

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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HJS – Cat. Converter Gaske (Part No.H4001653551HJS)

Cat. Converter Gaske

from

$8.20
Cat. Converter Gaske

MagnaFlow – OEM Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.51204)

OEM Grade Federal / EPA Compliant Universal Catalytic Converter

from

$194.99
MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51204 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 OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

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.81901)

CalCat Catalytic Converter- CARB Certified, Universal / Fabrication Needed

from

$1312.99
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
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Walker – CalCat CARB Direct Fit Catalytic Converter 1.995" Outlet (OD) (Part No.81751)

CalCat CARB Direct Fit Catalytic Converter 1.995" Outlet (OD)

from

$1296.99
Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Direct-Fit Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles and delivers a precise OE-style fit.

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.
  • 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.
  • DIRECT-FIT DESIGN — Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn’t require specialized fabrication or welding
  • 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
  • STRONG AND DURABLE — Features thick OE-style flanges, hangers and brackets for strength and stainless-steel body with aluminized pipe and heat shields for durability
See More

Dorman – Direct Fit Catalytic Converter: No Fabrication Needed, EPA Compliant (Part No.679-509)

Direct Fit Catalytic Converter: No Fabrication Needed, EPA Compliant

from

$641.99
This catalytic converter is precision-engineered to match the original equipment fit and function on specific vehicle years, makes and models for a reliable replacement.

Product Features:
  • Direct replacement – this catalytic converter is designed to match the fit and performance of the original equipment on specific vehicles.
  • Durable construction – manufactured within strict tolerances for reliable longevity.
  • Cost-effective solution – offers original equipment functionality at a competitive price
  • Trustworthy value – backed by team of engineers and quality control experts in the United States
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MagnaFlow – HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.50212)

HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$387.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 50212. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. Designed to fit the 1996-2000 Nissan Pathfinder and 1997-2000 INFINITI QX4, this direct-fit catalytic converter also interchanges with OE parts B08A0-0W000 and B08A0-0W500. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.

Product Features:
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.49320)

OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$371.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49320. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. Designed to fit the 1996-2004 Nissan Pathfinder and 1997-2003 INFINITI QX4, this direct-fit catalytic converter also interchanges with OE parts B08A1-0W000 and B08A1-0W500, among others. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.50211)

HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$354.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 50211. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. Designed to fit the 1996-2004 Nissan Pathfinder and 1997-2003 INFINITI QX4, this direct-fit catalytic converter also interchanges with OE parts B08A1-0W000 and B08A1-0W500, among others. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.

Product Features:
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.24748)

HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$350.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 24748. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. Designed to fit the 1998-2000 Nissan Pathfinder and 1998-2001 INFINITI QX4, this direct-fit catalytic converter also interchanges with OE parts 20020-1W600 and 20020-5W000. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.

Product Features:
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.49532)

OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$344.99
MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49532 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. Designed to fit the 1998-2004 Nissan Pathfinder and 1998-2003 INFINITI QX4, this direct-fit catalytic converter also interchanges with OE parts 14004-4W000 and 20010-1W611, among others. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.24118)

HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$328.99
MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 24118 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. Designed to fit the 1998-2004 Nissan Pathfinder and 1998-2003 INFINITI QX4, this direct-fit catalytic converter also interchanges with OE parts 14004-4W000 and 20010-1W611, among others. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.

Product Features:
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

Ishino Stone – Cat. Converter Gaske (Part No.H4001109962ISH)

Cat. Converter Gaske

from

$10.15
Cat. Converter Gaske

In-Demand Exhaust Mufflers for 1998 Infiniti QX4s

Select from 3 premium Exhaust Mufflers parts for your 1998 Infiniti QX4, with prices ranging from $4.44 to $166.99.

Walker – Quiet-Flow SS Direct Fit Exhaust Muffler Assembly 2" Inlet (OD) 2" Outlet (OD) (Part No.53111)

Quiet-Flow SS Direct Fit Exhaust Muffler Assembly 2" Inlet (OD) 2" Outlet (OD)

from

$166.99
Combining the only broad-market stainless-steel body construction with a direct fit OE-style replacement, Walker Quiet-Flow SS muffler assemblies deliver longer life than typical aluminized mufflers and are available for domestic and foreign vehicles.

Product Features:
  • CORROSION RESISTANT STAINLESS STEEL — The only broad-market muffler body with 100% stainless-steel construction that delivers longer life versus aluminized mufflers while an internal drainage system reduces moisture collection
  • 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
  • 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
See More

Ishino Stone – Exh. Man. to Pipe Ga (Part No.H400331407ISH)

Exh. Man. to Pipe Ga

from

$4.44
Exh. Man. to Pipe Ga

Walker – SoundFX Direct Fit Exhaust Muffler 1.75" Inlet (ID) (Part No.18964)

SoundFX Direct Fit Exhaust Muffler 1.75" Inlet (ID)

from

$139.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX direct-fit 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
  • EASY TO INSTALL — Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation that doesn’t require specialized fabrication and/or welding
  • 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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Most Sold 1998 Infiniti QX4 Exhaust Hangers

Explore our best-selling Infiniti parts for the 1998 QX4 among 2 OEM and aftermarket options starting from $6.29.

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
See More

Dorman – Double Ended Stud – M10-1.50 x 27mm and M10-1.50 x 12mm (Part No.29224)

Double Ended Stud - M10-1.50 x 27mm and M10-1.50 x 12mm

from

$6.29
This exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles. Made of quality materials, this hardware is engineered for reliable performance.

Product Features:
  • Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles.
  • Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
  • Durable construction – these parts are made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Top-Rated Exhaust Parts Brands For Your 1998 Infiniti QX4

Shop for the best-rated brands offering Exhaust Parts and other products for your 1998 Infiniti QX4s. Below you’ll find some of our best rated Exhaust Parts from FELPRO, Walker, and Dorman, and more. Exhaust Parts from these brands that fit a 1998 QX4 start at just $4.79 and are rated as high as 5 stars. OEM and aftermarket Exhaust Parts don’t get more top quality, durable, and affordable than from the brands below.

Popular FELPRO 1998 Infiniti QX4 Exhaust Parts

When it comes to maintaining or upgrading your 1998 Infiniti QX4, 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 1998 Infiniti QX4. 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 $4.79, with an average price of just $13.76. Plus, with over 7 customer reviews and an average rating of 5 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.

Exhaust Pipe Flange Gasket
from
$4.99

(1)

Exhaust Pipe Flange Gasket

“Solid product.”

Exhaust Pipe Flange Gasket
from
$4.79

(6)

Exhaust Pipe Flange Gasket

“marched the muffler lange perfectly”

Exhaust Manifold Gasket Set
from
$31.49
This product is not rated

Exhaust Manifold Gasket Set

“”

Popular Walker 1998 Infiniti QX4 Exhaust Parts

Walker auto parts is one of the highest quality Exhaust Part brands in the market. Any 1998 Infiniti QX4 owner should feel confident when installing genuine Walker parts in their vehicle. To ensure the best fit and performance for your 1998 QX4, Advance Auto Parts carries a full inventory of 9 Walker Exhaust Parts. Plus you will be keeping your Infiniti in peak condition while saving money because prices on these Walker Exhaust Parts range from $6.49 to $1,312.99, plus, with more than 50 customer reviews and an impressive 4 stars average rating, you can be confident the Fram Exhaust Parts below will deliver on both quality and value.

Direct Fit Exhaust Resonator and Pipe Assembly 2" Outlet (OD)
from
$151.99
This product is not rated

Direct Fit Exhaust Resonator and Pipe Assembly 2" Outlet (OD)

“”

Exhaust Pipe 1.75" Outlet (OD)
from
$147.99
This product is not rated

Exhaust Pipe 1.75" Outlet (OD)

“”

FAQs for 1998 Infiniti QX4 Exhaust Parts

Which Exhaust Parts are best-sellers for 1998 Infiniti QX4s?

Out of 45 Exhaust Parts that fit 1998 Infiniti QX4s, the following parts are the top sellers:

What’s the price range for 1998 Infiniti QX4 Exhaust Parts?

Exhaust Part prices for the 1998 Infiniti QX4 start at $2.17 and go up to $1,312.99 for the most premium parts.

What’s the average price of a Exhaust Part for a 1998 Infiniti QX4?

The average price for Exhaust Parts for the 1998 Infiniti QX4 is $173.52. 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 Infiniti QX4 model years?

Yes, we currently carry Exhaust Parts for 6 model years of Infiniti QX4s between 1997 and 2003. Exhaust Parts are bought most frequently for the following model years: 2003, 2002, 2001, 2000, 1999, and 1997.

What are the cheapest Exhaust Parts for my 1998 Infiniti QX4?

The cheapest 1998 Infiniti QX4 Exhaust Parts we carry in stock are:

What are the top-rated Exhaust Parts that fit the 1998 Infiniti QX4?

Out of 76 reviews by customers, our 1998 Infiniti QX4 Exhaust Parts have an average customer rating of . These are some of the highest-rated Exhaust Part types for the 1998 Infiniti QX4 and their top-rated products:

What types of Exhaust Parts do you sell for my 1998 Infiniti QX4?

As of 2/5/25, these are some of the most in-demand types of Exhaust Parts for a 1998 Infiniti QX4:

Can I get help with 1998 Infiniti QX4 Exhaust Part orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Infiniti Exhaust Parts and more.

What is your return policy for Infiniti QX4 Exhaust Parts?

Advance Auto Parts keeps returns simple. For new Infiniti QX4 Exhaust Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.