2003 Lexus IS300 Exhaust Parts
More 2003 Lexus IS300 Exhaust Parts Categories
If you’re looking for an original Exhaust Parts replacement for a 2003 Lexus IS300, you can search through our selection below. You’ll also find aftermarket and OEM Exhaust Parts to meet your needs.
Essential 2003 Lexus IS300 Exhaust Parts
Ishino Stone – Exhaust Manifold Gasket (Part No.A8111272613ISH)
from
$25.81
Exhaust Manifold Gasket
Victor Reinz – Exhaust Manifold Gasket Set (Part No.15-42846-01)
from
$20.29
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:
See More
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.
BRExhaust – Exhaust Bolt, Nut, and Spring Kit (Part No.254-9910)
from
$23.49
BRExhaust offers exhaust flange bolts and kits to secure their premium line of exhaust replacement components. Each component delivers the strength of steel, a proper fit and an easier install or repair. BRExhaust has individual bolts, as well as bolts with springs and nuts to get your project completed. Choose the individual part or kit designed to fit on your vehicle application. The exact fit, easy installation and enduring functionality of BRExhaust’s OE replacement spring and bolt kits instantly equip your ride with optimally restored emissions control.
See More
Walker – Exhaust 36454 Exhaust Bolt and Spring (Part No.36454)
from
$17.49
Complete your exhaust repair with a Walker spring bolt kit. Designed to ensure a tight connection and inhibit leaks, Walker hardware is manufactured from durable and robust material for long service life.
Product Features:
See More
Product Features:
- KEEPS EXHAUST PARTS IN PLACE — Designed to support undercar exhaust components
- CONSISTENT PERFORMANCE — Spring designed with the right compression strength for a secure connection
- PREMIUM MATERIALS — Made from high-quality materials for durability and long life
- THE RIGHT CONNECTION — Designed to be used for ball and socket joint
- BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
Walker – Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (Part No.55505)
from
$191.99
Combining the only broad-market stainless-steel 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:
See More
Product Features:
- CORROSION RESISTANT STAINLESS STEEL — The only broad-market muffler 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
FELPRO – Exhaust Pipe Gasket (Part No.H4006826973FEL)
from
$22.72
Exhaust Pipe Gasket
Walker – Donut Exhaust Pipe Flange Gasket: Graphoil, Heat Resistant, Premium Materials (Part No.31533)
from
$21.49
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:
See More
Product Features:
- AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizesfora 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-½ accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
MagnaFlow – OEM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.49284)
from
$804.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49284. 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 2006-2015 Lexus IS250, 2007-2015 Lexus GS350, and more, this direct-fit catalytic converter also interchanges with OE parts 17150-31120 and 17150-31290. 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 California or Federal/EPA Emission systems.
Product Features:
See More
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.
MagnaFlow – California Grade CARB Compliant Universal Catalytic Converter (Part No.441006)
from
$503.99
MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 441006 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:
See More
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 CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
Walker – Catalytic Converter- EPA Ultra, Direct Replacement, No Fabrication Needed (Part No.54666)
from
$787.99
Designed to comply with EPA standards while delivering premium performance with assured compliance, Walker Ultra Direct-Fit Catalytic Converters provide premium performance and are available for import and domestic OBDII (1996 and newer) vehicles.
Product Features:
See More
Product Features:
- EPA COMPLIANT — For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA, CO or NY. Legal inME on EPA Federal Emission Equipped Vehicles only. Consult your state’s aftermarket converter regulations for details.
- 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 and/or welding
- KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES — OE-style high-technology washcoat and optimal precious metal load delivers required reduction in tailpipe emissions to match vehicle application
- STRONG AND DURABLE — Features thick OE-style flanges, hangers and brackets for strength and durability
- OE-STYLE DESIGN — Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
MagnaFlow – OEM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.49283)
from
$1614.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49283. 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 1998-2005 Lexus GS300, 2001-2005 Lexus IS300, and more, this direct-fit catalytic converter also interchanges with OE parts 17140-46030 and 17140-46080. 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:
See More
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.
MagnaFlow – HM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.50604)
from
$766.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 50604. 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 2006-2015 Lexus IS250, 2007-2015 Lexus GS350, and more, this direct-fit catalytic converter also interchanges with OE parts 17150-31120 and 17150-31290, among others. 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:
See More
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.
Dorman – Manifold Converter – Carb Compliant – For Legal Sale In NY – CA – ME (Part No.673-642)
from
$1208.99
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:
See More
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
Dorman – Exhaust Bolt and Spring Kit – (2) Springs (2) Studs (Part No.675-221)
from
$7.29
Exhaust manifold fastener kits provide a time-saving solution for repairing the manifold. Each kit is designed for direct replacement of rusted or damaged exhaust bolts and springs.
Product Features:
See More
Product Features:
- New hardware helps fix exhaust leaks
- Depending on the application, kits include hardware to securely attach the manifold to the exhaust system
- Also available separately (where applicable)
- Hardened steel construction for long-lasting durability
HJS – Exhaust Hanger (Part No.H8050174953HJS)
from
$10.99
Exhaust Hanger
Dorman – Exh. Manifold Bolt & (Part No.H1017831587DOR)
from
$10.56
Exh. Manifold Bolt &
Felpro – Exhaust Pipe Flange Gasket (Part No.61460)
from
$21.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust
Product Features:
See More
Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design to ensure a perfect fit
- Engineered for the sealing repair environment
- Unsurpassed quality you can trust
- Validated for fit, form, and function
Felpro – Exhaust Pipe Flange Gasket (Part No.61598)
from
$16.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust
Product Features:
See More
Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design to ensure a perfect fit
- Engineered for the sealing repair environment
- Unsurpassed quality you can trust
- Validated for fit, form, and function
Walker – Ring Exhaust Pipe Flange Gasket: Fiber with Metal, Heat Resistant, Premium Materials (Part No.31585)
from
$4.29
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:
See More
Product Features:
- AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizesfora 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-½ accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
BRExhaust – Exhaust Flange Gasket (Part No.256-214)
from
$5.29
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:
See More
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
Felpro – Exhaust Pipe Flange Gasket (Part No.60906)
from
$7.79
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:
See More
Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design to ensure a perfect fit
- Engineered for the sealing repair environment
- Unsurpassed quality you can trust
- Validated for fit, form, and function
Walker – Donut Exhaust Pipe Flange Gasket: Fiber, Heat Resistant, Premium Materials (Part No.31332)
from
$4.49
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:
See More
Product Features:
- AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizesfora 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-½ accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
Walker – Exhaust 36421 Exhaust Pipe Spout (Part No.36421)
from
$57.99
Made from quality material for durability, Walker exhaust spout pipes are available in a variety of styles and sizes for direct-fit or universal application.
Product Features:
See More
Product Features:
- RESISTS CORROSION — Durable aluminized steel for corrosion resistance and performance
- SECURE FIT — Burr-free construction for proper fitment
- BETTER TOGETHER — Use quality Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
- EASY TO INSTALL — Manufactured with precision bends and OE-style routings, hangers and connectors for easy installation (where applicable)
Flowtech – Terminator; Exhaust Tips (Part No.59905FLT)
from
$85.99Product Features:
- Show Quality Chrome Platinum
- Durable Black Finish
- Can Be Welded Or Clamped
- Complete The System
- Glass-Packed Resonators
Popular 2003 Lexus IS300 Exhaust Parts Categories
2003 Lexus IS300 Exhaust Parts
You count on your 2003 Lexus IS300 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 26 Exhaust Parts ranging in price from $4.29 to $1,614.99, you’re sure to find everything you need for your 2003 Lexus IS300.
Brands matter. If you want to shop a specific Exhaust Parts brand, we stock 7 different brands like Walker, Felpro, and Dorman. 2003 Lexus IS300 Exhaust Parts start as low as $4.29!
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 278 extensive product reviews on 2003 Lexus IS300 Exhaust Parts. Some of the top-rated Exhaust Parts products we carry are Catalytic Converter- EPA Ultra, Universal/ Fabrication Needed with 3.0 stars and Exhaust 36421 Exhaust Pipe Spout with 5.0 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 2003 Lexus IS300 below to get started!
Top-Rated Exhaust Parts Brands For Your 2003 Lexus IS300
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 2003 Lexus IS300 running right for years to come. In our inventory you’ll find brands like Walker, Felpro, Dorman, and even more.
Popular BRExhaust Exhaust Parts
You’ll find popular BRExhaust brand products across Exhaust Pipes. All are waiting to get your 2003 Lexus IS300 back on the road. Some of the top-rated BRExhaust products in these categories are:
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 2003 Lexus IS300, and some of our most reviewed Walker parts include:
from
$4.49
(38)
Donut Exhaust Pipe Flange Gasket: Fiber, Heat Resistant, Premium Materials
Exhaust Pipe and Flange Gaskets
from
$4.29
(22)
Ring Exhaust Pipe Flange Gasket: Fiber with Metal, Heat Resistant, Premium Materials
Exhaust Pipe and Flange Gaskets
FAQs for 2003 Lexus IS300 Exhaust Parts
What are the most purchased Exhaust Parts for the 2003 Lexus IS300?
Out of 26 Exhaust Parts for the 2003 Lexus IS300, the most popular in our inventory are:
from
$21.49
(3)
Donut Exhaust Pipe Flange Gasket: Graphoil, Heat Resistant, Premium Materials
Catalytic Converter Gaskets
from
$7.29
This product is not rated
Exhaust Bolt and Spring Kit – (2) Springs (2) Studs
Exhaust Manifold and Header Hardware
What are the top-rated 2003 Lexus IS300 Exhaust Parts?
Top-rated Exhaust Parts for your 2003 Lexus IS300 based on customer reviews/ratings are:
from
$224.99
(2)
Catalytic Converter- EPA Ultra, Universal/ Fabrication Needed
“This is a good aftermarket cat that you will have to modify to fit your vehicle. This a universal cat that is determined to be an exact fit based on ”
from
$57.99
(1)
Exhaust 36421 Exhaust Pipe Spout
“Worked great but it is made to fit the walker replacement muffler. The OEM muffler has a 2″ outlet, where the Walker has a 2.5″. Looks good though, I ”
from
$191.99
(1)
Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed
“Fits/installs perfect on a 2001 Lexus IS300. Just as quiet as the OE muffler it replaced, if not quieter.
Cons:
The welds are already starting to ”
