1999 Lexus SC300 Catalytic Converters

Keep Your 1999 Lexus SC300 in Top Shape with Quality Catalytic Converters

Whether you’re repairing or upgrading your Catalytic Converter, using high-quality parts is key to keeping your 1999 Lexus SC300 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Catalytic Converter Gaskets and Catalytic Converters. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Catalytic Converters from Trusted Brands

Looking for a reliable Catalytic Converter? We’ve got you covered with options from brands you know and trust like Walker. For example, Walker Catalytic Converters start at just $3.59 with an average 4.2 star rating. With over 38 reviews and a solid 5 star average, you can shop with confidence knowing other Lexus SC300 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1999 Lexus SC300 Catalytic Converter at Advance Auto Parts is around $368.79, with a range that starts at $3.59 and goes up to $733.99. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Manifold Converter – Not Carb Compliant – Not For Sale – NY – CA – ME start at just $733.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Catalytic Converter, don’t forget to check out other key components like Exhaust Manifold and Headers and Exhaust Tips. At Advance Auto Parts, we’re here to help you keep your 1999 Lexus SC300 in peak condition, inside and out.

Essential 1999 Lexus SC300 Catalytic Converters

Walker – Exhaust Pipe Flange Gasket (Part No.31332)

Exhaust Pipe Flange Gasket

from

$3.59
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

MagnaFlow – California Grade CARB Compliant Universal Catalytic Converter (Part No.444005)

California Grade CARB Compliant Universal Catalytic Converter

from

$371.99
MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 444005 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design cutting and welding is required. With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Compact, lightweight construction enables installation in confined areas, welding is required
  • Durable 308 stainless steel MIG welds
See More

MagnaFlow – California Universal Catalytic Converter – 2.25" (Part No.338105)

California Universal Catalytic Converter - 2.25"

from

$259.99
MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 338105 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design, cutting and welding is required. With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Compact, lightweight construction enables installation in confined areas, welding is required
  • Durable 308 stainless steel MIG welds
See More

Walker – Ultra EPA Universal Catalytic Converter – 2.25" Inlet (ID) 2.25" Outlet (ID) (Part No.93247)

Ultra EPA Universal Catalytic Converter - 2.25" Inlet (ID) 2.25" Outlet (ID)

from

$188.99
Product Features:
  • EPA COMPLIANT – For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA, CO & NY. Legal in ME on EPA Federal Emission Equipped Vehicles only. Consult your state’s aftermarket converter regulations for details.
  • KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES – OE-style high-technology wash coat and optimal precious metal load delivers required reduction in tailpipe emissions to match vehicle application
  • 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 welding for installation
  • OE-STYLE DESIGN – Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
  • BUY WITH CONFIDENCE – Backed by Walker’s 25,000-mile/40,000-kilometer emissions and 50,000-mile/80,000-kilometer structural integrity limited warranty. Visit Walkerexhaust.com for details.
See More

MagnaFlow – Direct-Fit HM Grade Catalytic Converter (Part No.93352)

Direct-Fit HM Grade Catalytic Converter

from

$605.99
MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 93352 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 1992-1998 Lexus SC300 and 1993-1997 Lexus GS300, this direct-fit catalytic converter also interchanges with OE parts 17410-46040 and 17410-46050, 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:
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
See More

MagnaFlow – HM Grade Universal Catalytic Converter – 2.50" (Part No.99176HM)

HM Grade Universal Catalytic Converter - 2.50"

from

$172.99
MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99176HM 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:
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Compact, lightweight construction enables installation in confined areas, welding is required
  • Durable 308 stainless steel MIG welds
See More

MagnaFlow – OEM Grade Universal Catalytic Converter – 2.50" (Part No.51176)

OEM Grade Universal Catalytic Converter - 2.50"

from

$178.99
MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51176 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:
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Compact, lightweight construction enables installation in confined areas, welding is required
  • Durable 308 stainless steel MIG welds
See More

Walker – Standard EPA Universal Catalytic Converter – 2.5" Inlet (ID) 2.5" Outlet (ID) (Part No.15038)

Standard EPA Universal Catalytic Converter - 2.5" Inlet (ID) 2.5" Outlet (ID)

from

$111.99
Product Features:
  • EPA COMPLIANT – For use on pre-OBDII vehicles, 1995 and older. Not legal for sale or use in CA, CO and NY. Legal in ME on all pre-OBD vehicles only. Consult your state’s aftermarket converter regulations for details.
  • NO BREAK IN REQUIRED – Ready to operate with application-specific converter shell design and mat compression, no converter break in required after installation
  • 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 welding for installation
  • OE-STYLE DESIGN – Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
  • BUY WITH CONFIDENCE – Backed by Walker’s 25,000-mile/40,000-kilometer emissions and 50,000-mile/80,000-kilometer structural integrity limited warranty. Visit Walkerexhaust.com for details.
See More

MagnaFlow – California Universal Catalytic Converter – 2.25" (Part No.441005)

California Universal Catalytic Converter - 2.25"

from

$503.99
MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 441005 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Compact, lightweight construction enables installation in confined areas, welding is required
  • Durable 308 stainless steel MIG welds
See More

Dorman – Manifold Converter – Not Carb Compliant – Not For Sale – NY – CA – ME (Part No.674-642)

Manifold Converter - Not Carb Compliant - Not For Sale - NY - CA - ME

from

$733.99
This catalytic converter with integrated exhaust manifold – a.k.a. manifold converter – is precision-engineered to match the original equipment on specific vehicle years, makes and models for a reliable replacement.

Product Features:
  • Direct replacement – this manifold converter is designed to match the fit and performance of the original equipment on specific vehicles
  • Convenient kit – includes gaskets and downpipe hardware to simplify installation
  • Durable construction -manufactured within strict tolerances for reliable longevity
  • Trustworthy value – backed by team of engineers and quality control experts in the United States
See More

Most Popular Catalytic Converter Gasket for 1999 Lexus SC300s

Enhance your 1999 Lexus SC300 with this popular Catalytic Converter Gasket we have in stock, for $3.59.

Walker – Exhaust Pipe Flange Gasket (Part No.31332)

Exhaust Pipe Flange Gasket

from

$3.59
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

Best-Selling 1999 Lexus SC300 Catalytic Converter

Upgrade your SC300 with our best-selling Catalytic Converter.

Dorman – Manifold Converter – Not Carb Compliant – Not For Sale – NY – CA – ME (Part No.674-642)

Manifold Converter - Not Carb Compliant - Not For Sale - NY - CA - ME

from

$733.99
This catalytic converter with integrated exhaust manifold – a.k.a. manifold converter – is precision-engineered to match the original equipment on specific vehicle years, makes and models for a reliable replacement.

Product Features:
  • Direct replacement – this manifold converter is designed to match the fit and performance of the original equipment on specific vehicles
  • Convenient kit – includes gaskets and downpipe hardware to simplify installation
  • Durable construction -manufactured within strict tolerances for reliable longevity
  • Trustworthy value – backed by team of engineers and quality control experts in the United States
See More

Top-Rated Catalytic Converter Brands For Your 1999 Lexus SC300

When it comes to finding the perfect Catalytic Converter for your 1999 Lexus SC300, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 2 trusted brands. We carry the most popular Catalytic Converter brands including Walker, and more, all known for their exceptional customer ratings (average brand rating of 4.2 stars) and competitive prices, as low as $3.59. Purchasing a Catalytic Converter from us here at Advance Auto Parts is a smart move for both you and your 1999 Lexus SC300, providing peace of mind with parts that meet or exceed OEM standards.

Popular Walker 1999 Lexus SC300 Catalytic Converters

If you’re looking for a top-quality Catalytic Converter for your 1999 Lexus SC300, Advance Auto Parts has exactly what you need with our selection of Walker Catalytic Converters. We have 1 Walker Catalytic Converters in stock for this fitment, all known for their durability and precision fit. With prices starting at just $3.59, you’ll find the perfect Catalytic Converter for your needs and budget. Walker Catalytic Converters for the 1999 Lexus SC300 come highly rated, with over 38 customer reviews and an impressive average rating of 4.2 stars. Choosing a Walker Catalytic Converter from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Exhaust Pipe Flange Gasket
from $3.59
(38)
Exhaust Pipe Flange Gasket
“Excellent product as advertised.”

FAQs for 1999 Lexus SC300 Catalytic Converters

What are the best-selling Catalytic Converters for 1999 Lexus SC300s?

Out of 2 Catalytic Converters that fit 1999 Lexus SC300s, the following parts are the top sellers:

What’s the price range for 1999 Lexus SC300 Catalytic Converters?

The prices of Catalytic Converters for the 1999 Lexus SC300 range from $3.59 up to $733.99 for the most premium parts.

What is the average price of a Catalytic Converter for a 1999 Lexus SC300?

The average price for Catalytic Converters for the 1999 Lexus SC300 is $368.79. Keep in mind the variety of part types within our Catalytic Converter category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Catalytic Converters for other Lexus SC300 model years?

Yes, we carry Catalytic Converters for 7 model years of Lexus SC300s between 1992 and 2000. The following model years are the most popular for Catalytic Converter purchases: 2000, 1998, 1997, 1996, 1995, 1994, 1993, and 1992.

What are the cheapest Catalytic Converters for my 1999 Lexus SC300?

The cheapest 1999 Lexus SC300 Catalytic Converters we carry are:

Does Advance Auto Parts sell Catalytic Converters for any other 1999 Lexus models?

Yes. We stock Catalytic Converters for 6 other popular 1999 Lexus models. Some of the most popular are 1999 ES300 Catalytic Converters, 1999 GS300 Catalytic Converters, 1999 LS400 Catalytic Converters, 1999 RX300 Catalytic Converters, and 1999 SC400 Catalytic Converters.

What are the top-rated Catalytic Converters that fit the 1999 Lexus SC300?

The one 1999 Lexus SC300 Catalytic Converter we have in stock is the Exhaust Pipe Flange Gasket. It is rated 4.5 stars and costs $3.59.

What types of Catalytic Converters do you sell for my 1999 Lexus SC300?

As of 11/2/25, these are some of the most in-demand types of Catalytic Converters for a 1999 Lexus SC300:

Can I get help with 1999 Lexus SC300 Catalytic Converter orders?

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

What is your return policy for Lexus SC300 Catalytic Converters?

Advance Auto Parts keeps returns simple. For new Lexus SC300 Catalytic Converters and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.