Lexus IS300 Exhaust Parts

Essential Lexus IS300 Exhaust Parts

MagnaFlow – California Grade CARB Compliant Manifold Catalytic Converter (Part No.452843)

California Grade CARB Compliant Manifold Catalytic Converter

from

$1287.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 452843. 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 2001-2005 Lexus IS300 and 2000-2005 Lexus GS300, 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 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:
  • 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 CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
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MagnaFlow – OEM Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.51206)

OEM Grade Federal / EPA Compliant Universal Catalytic Converter

from

$194.99
MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51206 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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Dorman – Help – Manifold Bolt and Spring Kit – 3/8-16 x 1-3/4; M10-1.25 x 67mm (Part No.03123)

Manifold Bolt and Spring Kit - 3/8-16 x 1-3/4; M10-1.25 x 67mm

from

$14.99
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:
  • Ideal replacement – the manifold bolt and spring match the fit and function of the original equipment hardware, including bolt diameter, thread pitch and head type.
  • Complete installation – this kit includes hardware required for securely attaching the manifold to the exhaust system
  • Trustworthy construction – the kit’s bolt and spring are made of hardened steel for durable, long-lasting service life
  • Quality tested – kit components have undergone extensive testing to ensure proper function and long service life
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Dorman – Exhaust Bolt and Spring Kit – (2) Springs (2) Studs (Sold by each) (Part No.675-221)

Exhaust Bolt and Spring Kit - (2) Springs (2) Studs (Sold by each)

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:
  • 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
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BRExhaust – Exhaust Flange Gasket (Part No.256-1108)

Exhaust Flange Gasket

from

$19.99
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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Ishino – Exhaust Gasket (Part No.H4000156989ISH)

Exhaust Gasket

from

$4.84
Exhaust Gasket

HJS – Exhaust Gasket (Part No.H4000157030HJS)

Exhaust Gasket

from

$4.80
Exhaust Gasket

Walker – Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (Part No.55505)

Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed

from

$191.99
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
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Victor Reinz – Exhaust Manifold Gasket Set (Part No.15-42846-01)

Exhaust Manifold Gasket Set

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:
  • 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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Felpro – EXHAUST MANIFOLD GASKET SET (Part No.MS 96686)

EXHAUST MANIFOLD GASKET SET

from

$9.29
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
  • Contains all gaskets and seals to remove and replace exhaust manifold
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HJS – Exhaust Hanger (Part No.H8050174953HJS)

Exhaust Hanger

from

$11.14
Exhaust Hanger

Dorman – Exh. Manifold Bolt & (Part No.H1017831587DOR)

Exh. Manifold Bolt &

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$10.74
Exh. Manifold Bolt &

Dorman – Exh. Manifold Bolt & (Part No.H10171184691DOR)

Exh. Manifold Bolt &

from

$13.62
Exh. Manifold Bolt &

Walker – Exhaust 36421 Exhaust Pipe Spout (Part No.36421)

Exhaust 36421 Exhaust Pipe Spout

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:
  • 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)
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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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BRExhaust – Exhaust Bolt, Nut, and Spring Kit (Part No.254-9910)

Exhaust Bolt, Nut, and Spring Kit

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

Exhaust Pipe Flange Gasket

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:
  • 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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HJS – Exhaust Gasket (Part No.H4000157032HJS)

Exhaust Gasket

from

$22.17
Exhaust Gasket

MagnaFlow – OEM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.49283)

OEM Grade Federal / EPA Compliant Manifold Catalytic Converter

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:
  • 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 Manifold Catalytic Converter (Part No.50604)

HM Grade Federal / EPA Compliant Manifold Catalytic Converter

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:
  • 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

Helping You Find the Right Exhaust Parts for Your Lexus IS300

You love your IS300. So we’ve made it easier than ever to help you find Lexus IS300 Exhaust Parts in our online catalog. Our inventory holds 47 aftermarket and OEM Exhaust Parts for your Lexus IS300, ranging from $4.29 to $1,614.99.

We offer parts from 11 brands trusted to make quality Exhaust Parts for your Lexus IS300. Before you buy, take some time to read through customer reviews. We currently have 903 reviews of Lexus IS300 Exhaust Parts from previous customers. Some of the top rated parts include Terminator; Exhaust Tips with 4.0 stars and Ultra EPA Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID) with 3.0 stars.

Find your IS300 Exhaust Parts here, order online, and have your order shipped directly to your home. Prefer to have an in-person look at your Lexus IS300 part to confirm it’s just right? You can find your nearest Advance Auto Parts store and confirm they have the part in stock before heading over.

Top Exhaust Parts Brands for Your Lexus IS300

Our inventory holds Exhaust Parts for your Lexus IS300 from 11 trusted brands. You’ll find OEM and aftermarket parts from brands like Walker, FELPRO, and Dorman, all of which can keep that Lexus happy.
We have BRExhaust parts available for your Lexus IS300 in categories like Exhaust Pipes. Some of the top-rated BRExhaust parts in these categories are:
Exhaust Flange Gasket
from $5.29
(1)
Exhaust Flange Gasket
Exhaust Pipe and Flange Gaskets

Top-Rated Walker Exhaust Parts

Leading Walker Exhaust Parts

We carry Walker brand parts for your Lexus IS300 across several catalog categories, including Catalytic Converters and Exhaust Pipes. Some of our most reviewed Walker parts include:
Exhaust Pipe Flange Gasket
from $4.49
(38)
Exhaust Pipe Flange Gasket
Catalytic Converter Gaskets
Exhaust Pipe Flange Gasket
from $4.29
(22)
Exhaust Pipe Flange Gasket
Exhaust Pipe and Flange Gaskets
Exhaust Pipe Flange Gasket
from $21.49
(3)
Exhaust Pipe Flange Gasket
Exhaust Pipe and Flange Gaskets

FAQs for Lexus IS300 Exhaust Parts

What are the most purchased Exhaust Parts for the Lexus IS300?

Out of 47 Exhaust Parts for the Lexus IS300, the most popular in our inventory are:
Exhaust Pipe Flange Gasket
from $5.49
(20)
Exhaust Pipe Flange Gasket
Exhaust Pipe and Flange Gaskets
Exhaust Pipe Flange Gasket
from $7.79
(7)
Exhaust Pipe Flange Gasket
Exhaust Pipe and Flange Gaskets
Exhaust Bolt and Spring Kit - (2) Springs (2) Studs (Sold by each)
from $7.29
This product is not rated
Exhaust Bolt and Spring Kit – (2) Springs (2) Studs (Sold by each)
Exhaust Manifold and Header Hardware

What are the top-rated Lexus IS300 Exhaust Parts?

Top-rated Exhaust Parts for your Lexus IS300 based on customer reviews/ratings are:
Terminator; Exhaust Tips
from $85.99
(5)
Terminator; Exhaust Tips
“very nice…worth the money.”
Ultra EPA Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID)
from $224.99
(2)
Ultra EPA Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID)
“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 ”
Exhaust 36421 Exhaust Pipe Spout
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 ”