Lexus IS300 Exhaust Parts

Essential Lexus IS300 Exhaust Parts

MagnaFlow – Street Series Axle-Back Performance Exhaust System (Part No.15227)

Street Series Axle-Back Performance Exhaust System

from

$1230.00
The MagnaFlow Street Series Axle-Back Performance Exhaust System 15227 brings enhanced engine sound and dyno-proven performance to your 2.0L, 2.5L, 3.5L 2014-2023 Lexus with a healthy helping of our deep, resonant signature exhaust note at Moderate exterior and Mild interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this Lexus exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features an axle-back layout designed to replace your Lexus’s exhaust system from near the rear axle on back. With its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit with 4in. Polished Welded-On Double Wall Angle Cut Rolled Edge tips, your ride will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15227 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited finish warranty and limited construction warranty.

Product Features:
  • Durable corrosion-resistant stainless steel construction
  • CNC precision robotic manufacturing techniques
  • Dyno-proven performance
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Walker – Quiet-Flow SS Direct Fit Exhaust Muffler Assembly, 2.12" Inlet (OD) 3" Outlet (OD) (Part No.55505)

Quiet-Flow SS Direct Fit Exhaust Muffler Assembly, 2.12" Inlet (OD) 3" Outlet (OD)

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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Walker – Ultra EPA Universal Catalytic Converter – 2.5" Inlet (ID) 2.5" Outlet (ID) (Part No.93238)

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

from

$206.99
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.
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MagnaFlow – Direct-Fit California Grade Catalytic Converter with Integrated Exhaust Manifold (Part No.452843)

Direct-Fit California Grade Catalytic Converter with Integrated Exhaust Manifold

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:
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • 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
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MagnaFlow – Direct-Fit OEM Grade Catalytic Converter with Integrated Exhaust Manifold (Part No.49283)

Direct-Fit OEM Grade Catalytic Converter with Integrated Exhaust Manifold

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:
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • 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
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MagnaFlow – Direct-Fit HM Grade Catalytic Converter with Integrated Exhaust Manifold (Part No.50603)

Direct-Fit HM Grade Catalytic Converter with Integrated Exhaust Manifold

from

$1292.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 50603. 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 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
  • 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
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Victor Reinz – Exhaust Manifold Gasket Set (Part No.15-42846-01)

Exhaust Manifold Gasket Set

from

$22.49
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.
  • Premium fiber and steel construction
  • Matched to Aftermarket port dimensions
  • Includes all components required to complete the repair
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Felpro – Exhaust Manifold Gasket Set (Part No.MS 96795)

Exhaust Manifold Gasket Set

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:
  • 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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Flowtech – Terminator; Exhaust Tips (Part No.59905FLT)

Terminator; Exhaust Tips

from

$93.99


Product Features:
  • Show Quality Chrome Platinum
  • Durable Black Finish
  • Can Be Welded Or Clamped
  • Complete The System
  • Glass-Packed Resonators
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Felpro – Exhaust Pipe Flange Gasket (Part No.23591)

Exhaust Pipe Flange Gasket

from

$6.49
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:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Felpro – Exhaust Pipe Flange Gasket (Part No.60495)

Exhaust Pipe Flange Gasket

from

$6.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Felpro – Exhaust Pipe Flange Gasket (Part No.61460)

Exhaust Pipe Flange Gasket

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:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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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

$7.99
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:
  • 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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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

$16.49
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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Walker – Exhaust Pipe Flange Gasket (Part No.31533)

Exhaust Pipe Flange Gasket

from

$16.99
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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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
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Walker – Exhaust Pipe Spout 3.625" Inlet (OD) (Part No.36421)

Exhaust Pipe Spout 3.625" Inlet (OD)

from

$59.99
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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Walker – Exhaust Bolt and Spring (Part No.36454)

Exhaust Bolt and Spring

from

$16.99
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:
  • 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
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BRExhaust – Exhaust Bolt and Spring (Part No.254-9910)

Exhaust Bolt and Spring

from

$26.99
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.

Product Features:
  • Designed to facilitate hassle-free exhaust repair
  • Precise fitment
  • Manufactured from quality materials to ensure maximum durability
  • Quality construction materials to ensure safe and secure exhaust system performance and a long service life
  • Manufactured according to strict OE standards
  • Sturdy design featuring premium-grade materials
  • Compatible with multiple domestic and import vehicles
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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 38 aftermarket and OEM Exhaust Parts for your Lexus IS300, ranging from $2.69 to $1,614.99.

We offer parts from 7 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 1,353 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 7 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 Pipe Flange Gasket
from $5.29
(1)
Exhaust Pipe 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 Exhaust System Kits and Catalytic Converters. Some of our most reviewed Walker parts include:
Exhaust Bolt and Spring
from $16.99
(51)
Exhaust Bolt and Spring
Exhaust Manifold Hardware Kits
Exhaust Pipe Flange Gasket
from $3.59
(38)
Exhaust Pipe Flange Gasket
Catalytic Converter Gaskets
Exhaust Pipe Flange Gasket
from $2.69
(22)
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 38 Exhaust Parts for the Lexus IS300, the most popular in our inventory are:
Exhaust Pipe Flange Gasket
from $6.49
(20)
Exhaust Pipe Flange Gasket
Exhaust Pipe and Flange Gaskets
Exhaust Pipe Flange Gasket
from $16.99
(3)
Exhaust Pipe Flange Gasket
Catalytic Converter Gaskets
Exhaust Pipe Flange Gasket
from $8.79
(7)
Exhaust Pipe Flange Gasket
Exhaust Pipe and Flange Gaskets

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 $93.99
(5)
Terminator; Exhaust Tips
“very nice…worth the money.”
Ultra EPA Universal Catalytic Converter - 2.5" Inlet (ID) 2.5" Outlet (ID)
from $206.99
(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 Pipe Spout 3.625" Inlet (OD)
from $59.99
(1)
Exhaust Pipe Spout 3.625" Inlet (OD)
“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 ”