2003 Mazda Miata Exhaust Parts

Name: Standard EPA Direct Fit Catalytic Converter
Brand: Walker
SKU: 15777
Price: 322.99 USD

Below you will find various in-demand Mazda Exhaust Parts, components and accessories for your 2003 Miata. Advance Auto Parts has popular Miata parts like Catalytic Converters Exhaust Gaskets and more. You’ll also find aftermarket and OEM Exhaust Parts for other Miata model years including 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2004, 2005 and more. Select a category of 2003 Mazda Miata Exhaust Parts below and start saving instantly.

Please Select your Vehicle to See Exact Fit Parts

Popular 2003 Mazda Miata Exhaust Parts Categories

Catalytic Converters

Exhaust Manifold Gaskets

Essential Exhaust Parts for 2003 Mazda Miatas

from

$322.99

Designed to provide the required reduction in tailpipe emissions and meet EPA emissions requirements with assured compliance, Walker Standard direct-fit catalytic converters are available for pre-OBD (1995 and older) vehicles.

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.
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 welding
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
BUY WITH CONFIDENCE – Backed by Walker’s 25,000-mile/40,000-kilometer emissions and 5-year 50,000-mile/80,000-kilometer structural integrity limited warranty. Visit Walkerexhaust.com for details.

from

$419.99

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 wash coat 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 welding for installation
BUY WITH CONFIDENCE – Backed by Walker’s 50,000-mile/80,000-kilometer emissions and structural integrity limited warranty

from

$194.99

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51205. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion welds greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. 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:

Compact, lightweight construction enables installation in confined areas, welding is required
Durable 308 stainless steel MIG welds
Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
Compact, lightweight construction enables installation in confined areas, welding is required
Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off

from

$559.99

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-286. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this 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 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. This Direct-Fit Catalytic Converter is designed to fit the 1999-2005 Mazda Miata 1.8L. MagnaFlow 21-286 includes (1) Torca Clamp, (1) Flange Gasket, (1) Flat Ring Gasket and interchanges with OE parts BP6F-20-55XA, BP6F-20-55XB, BP6F-20-55XC. 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:

High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
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
OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
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

from

$724.99

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 452992. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this 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 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. This Direct-Fit Catalytic Converter is designed to fit the 1999-2000 Mazda Miata 1.8L. MagnaFlow 452992 includes (1) Flange Gasket and interchanges with OE parts BP4Y-20-500B, BP4Y-20-500C. 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:

Durable 308 stainless steel MIG welds
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

from

$222.99

Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99004HM. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. 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
Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last

from

$464.99

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 wash coat 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 welding for installation
BUY WITH CONFIDENCE – Backed by Walker’s 50,000-mile/80,000-kilometer emissions and structural integrity limited warranty

from

$333.99

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 457105. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. 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
Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
Compact, lightweight construction enables installation in confined areas, welding is required
Durable 308 stainless steel MIG welds

from

$229.99

Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 23696. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this 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 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. This Direct-Fit Catalytic Converter is designed to fit the 1994-1997 Mazda Miata 1.8L. MagnaFlow 23696 includes (2) Flange Gaskets and interchanges with OE parts BPE8-20-600, BPS1-20-600. 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:

Simplifies installation with essential gaskets and hardware being included in the box
Durable 308 stainless steel MIG welds
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

from

$503.99

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 441004. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. 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:

Compact, lightweight construction enables installation in confined areas, welding is required
Durable 308 stainless steel MIG welds
Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
Compact, lightweight construction enables installation in confined areas, welding is required
Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off

from

$179.99

Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99205HM. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. 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:

Compact, lightweight construction enables installation in confined areas, welding is required
Compact, lightweight construction enables installation in confined areas, welding is required
Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
Durable 308 stainless steel MIG welds

from

$1018.99

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4481696. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this 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 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. This Direct-Fit Catalytic Converter is designed to fit the 1996-1997 Mazda Miata 1.8L. MagnaFlow 4481696 includes (2) Flange Gaskets and interchanges with OE parts BPE8-20-600, BPS1-20-600. 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:

Durable 308 stainless steel MIG welds
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

from

$561.99

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 3322305. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. 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:

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
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
Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off

from

$99.99

Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 53005. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design. 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 pre-OBDII Federally registered vehicles.

Product Features:

Durable 308 stainless steel MIG welds
Compact, lightweight construction enables installation in confined areas, welding is required
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
Durable 308 stainless steel MIG welds

from

$25.99

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

from

$16.49

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
Contains all gaskets and seals to remove and replace exhaust manifold
Contains all gaskets and seals to remove and replace exhaust manifold

Upgrade your 2003 Mazda Miata with Top-Quality Exhaust Parts

When it comes to maintaining or upgrading your 2003 Mazda Miata, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Mazda or enhancing its overall performance, Exhaust Parts are key to keeping your Miata functioning at its best. At Advance Auto Parts, we offer a wide selection of 11 Exhaust Parts for the 2003 Mazda Miata, designed to meet your needs without breaking the bank. From Catalytic Converter replacements to Exhaust Gaskets 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 2003 Mazda Miata at great prices. Our Exhaust Parts inventory for this model ranges from just $16.49 to $724.99, with an average price of $406.67. Our 11 Exhaust Parts in stock come from 3 trusted brands, so you’re sure to find the right part for your 2003 Mazda Miata 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 2003 Mazda Miata, we stock popular OEM and aftermarket Exhaust Parts from top names like Walker MagnaFlow, and more. Walker Exhaust Parts start at just $607.99 and boast an impressive 4.2 stars average rating from customers. With 14 customer reviews and counting, our 2003 Mazda Miata 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 2003 Mazda Miata is always ready to roll. We’re committed to providing you with everything you need to keep your Miata in top shape, all in one place. Start shopping confidently below for your 2003 Mazda Miata!

Best-Selling Catalytic Converters for 2003 Mazda Miatas

Enhance the driving experience in your Mazda with 10 quality Catalytic Converter components, starting at $179.99.

show more show less

from

$607.99

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 wash coat 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 welding for installation
BUY WITH CONFIDENCE – Backed by Walker’s 50,000-mile/80,000-kilometer emissions and structural integrity limited warranty

from

$519.99

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Semi-Direct-Fit Catalytic Converter 51597. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no 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 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. This Direct-Fit Catalytic Converter is designed to fit the 1999-2005 Mazda Miata 1.8L. MagnaFlow 51597 includes (4) Flat Washers, (2) Bolts, (1) Flat Ring Gasket, (2) Nuts and interchanges with OE parts BP4Y-20-55XC, BP4Y-20-55XF, BP4Y-20-55XG, BP4Y-20-55XH, BP4Z-20-55XC, BP4Z-20-55XF, BP4Z-20-55XG, BP4Z-20-55XH, BP6F-20-55XA, BP6F-20-55XB, BP6F-20-55XC, BP7F-20-55X. 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
Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
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
Simplifies installation with essential gaskets and hardware being included in the box
Durable 308 stainless steel MIG welds

from

$179.99

Compact, lightweight construction enables installation in confined areas, welding is required
Compact, lightweight construction enables installation in confined areas, welding is required
Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
Durable 308 stainless steel MIG welds

from

$222.99

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
Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last

from

$231.99

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51004. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion welds greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. 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
Durable 308 stainless steel MIG welds
Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off

from

$194.99

Compact, lightweight construction enables installation in confined areas, welding is required
Durable 308 stainless steel MIG welds
Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
Compact, lightweight construction enables installation in confined areas, welding is required
Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off

from

$724.99

Durable 308 stainless steel MIG welds
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

from

$718.99

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 448304. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. 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 formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
Durable 308 stainless steel MIG welds
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
High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life

from

$559.99

High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
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
OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
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

from

$494.99

Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Semi-Direct-Fit Catalytic Converter 23771. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no 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 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. MagnaFlow 23771 includes (4) Flat Washers, (2) Nuts, (1) Flat Ring Gasket, (2) Bolts and interchanges with OE parts BP4Y-20-55XC, BP4Y-20-55XF, BP4Y-20-55XG, BP4Y-20-55XH, BP4Z-20-55XC, BP4Z-20-55XF, BP4Z-20-55XG, BP4Z-20-55XH, BP6F-20-55XA, BP6F-20-55XB, BP6F-20-55XC, BP7F-20-55X. 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
Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
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
Simplifies installation with essential gaskets and hardware being included in the box
Durable 308 stainless steel MIG welds

Top-Rated Exhaust Parts Brands For Your 2003 Mazda Miata

Shop for the best-rated brands offering Exhaust Parts and other products for your 2003 Mazda Miatas. Below you’ll find some of our best rated Exhaust Parts from Walker and MagnaFlow, and more. Exhaust Parts from these brands that fit a 2003 Miata start at just $179.99 and are rated as high as 4.2 stars. OEM and aftermarket Exhaust Parts don’t get more top quality, durable, and affordable than from the brands below.

Popular Walker 2003 Mazda Miata Exhaust Parts

When it comes to maintaining or upgrading your 2003 Mazda Miata, using quality Exhaust Parts is essential to ensure durability and a perfect fit. Walker ticks all of those boxes. We offer a wide selection of Walker Exhaust Parts, specifically designed for the 2003 Mazda Miata. With over 1 Walker brand Exhaust Parts in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $607.99. Plus, with over 1 customer reviews and an average rating of 4.2 stars, you can trust that our Walker 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.

from $607.99

(1)

CalCat CARB Universal Catalytic Converter – 2.25" Inlet (ID) 2.25" Outlet (ID)

“VERY GOOD QUALITY AND GOOD PRICE AND FAST SHIPING”

Popular MagnaFlow 2003 Mazda Miata Exhaust Parts

MagnaFlow auto parts is one of the highest quality Exhaust Part brands in the market. Any 2003 Mazda Miata owner should feel confident when installing genuine MagnaFlow parts in their vehicle. To ensure the best fit and performance for your 2003 Miata, Advance Auto Parts carries a full inventory of 2 MagnaFlow Exhaust Parts. Plus you will be keeping your Mazda in peak condition while saving money because prices on these MagnaFlow Exhaust Parts range from $179.99 to $519.99, plus, with more than 6 customer reviews and an impressive 4.1 stars average rating, you can be confident the Fram Exhaust Parts below will deliver on both quality and value.

from $519.99

(1)

Semi-Direct Fit OEM Grade Federal / EPA Compliant Catalytic Converter

“Fits perfect, weathertech never fails.”

from $179.99

(5)

Universal HM Grade Federal / EPA Compliant Catalytic Converter

“needs to be cut to fit my application but worked great”

FAQs for 2003 Mazda Miata Exhaust Parts

Which Exhaust Parts are best-sellers for 2003 Mazda Miatas?

Out of 11 Exhaust Parts that fit 2003 Mazda Miatas, the following parts are the top sellers:

Exhaust Manifold Gasket Set (3501949) – $16.49
Universal HM Grade Federal / EPA Compliant Catalytic Converter (22315805) – $222.99
Universal OEM Grade Federal / EPA Compliant Catalytic Converter (10604867) – $231.99

What’s the price range for 2003 Mazda Miata Exhaust Parts?

Exhaust Part prices for the 2003 Mazda Miata start at $16.49 and go up to $724.99 for the most premium parts.

What’s the average price of a Exhaust Part for a 2003 Mazda Miata?

The average price for Exhaust Parts for the 2003 Mazda Miata is $406.67. 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 Mazda Miata model years?

Yes, we currently carry Exhaust Parts for 13 model years of Mazda Miatas between 1990 and 2005. Exhaust Parts are bought most frequently for the following model years: 2005, 2004, 2002, 2001, 2000, 1999, 1997, 1996, and 1995.

What are the cheapest Exhaust Parts for my 2003 Mazda Miata?

The cheapest 2003 Mazda Miata Exhaust Parts we carry in stock are:

Exhaust Manifold Gasket Set (3501949) – $16.49
Universal HM Grade Federal / EPA Compliant Catalytic Converter (22315796) – $179.99
Universal OEM Grade Federal / EPA Compliant Catalytic Converter (10605383) – $194.99
Universal HM Grade Federal / EPA Compliant Catalytic Converter (22315805) – $222.99
Universal OEM Grade Federal / EPA Compliant Catalytic Converter (10604867) – $231.99

What are the top-rated Exhaust Parts that fit the 2003 Mazda Miata?

Out of 14 reviews by customers, our 2003 Mazda Miata Exhaust Parts have an average customer rating of . These are some of the highest-rated Exhaust Part types for the 2003 Mazda Miata and their top-rated products:

Catalytic Converters
- Semi-Direct Fit OEM Grade Federal / EPA Compliant Catalytic Converter (10605234) – $519.99
- CalCat CARB Universal Catalytic Converter – 2.25" Inlet (ID) 2.25" Outlet (ID) (10472173) – $607.99
- Universal HM Grade Federal / EPA Compliant Catalytic Converter (22315796) – $179.99

What types of Exhaust Parts do you sell for my 2003 Mazda Miata?

As of 3/1/26, these are some of the most in-demand types of Exhaust Parts for a 2003 Mazda Miata:

Can I get help with 2003 Mazda Miata Exhaust Part orders?

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

What is your return policy for Mazda Miata Exhaust Parts?

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

2003 Mazda Miata Exhaust Parts

Walker – Standard EPA Direct Fit Catalytic Converter (Part No.15777)

Walker – CalCat CARB Universal Catalytic Converter – 2" Inlet (ID) 2" Outlet (ID) (Part No.81126)

MagnaFlow – Universal OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.51205)

MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.21-286)

MagnaFlow – Direct-Fit California Grade CARB Compliant Catalytic Converter (Part No.452992)

MagnaFlow – Universal HM Grade Federal / EPA Compliant Catalytic Converter (Part No.99004HM)

Walker – CalCat CARB Universal Catalytic Converter – 2.25" Inlet (ID) 2.25" Outlet (ID) (Part No.81127)

MagnaFlow – Universal California Grade CARB Compliant Catalytic Converter (Part No.457105)

MagnaFlow – Direct-Fit HM Grade Federal / EPA Compliant Catalytic Converter (Part No.23696)

MagnaFlow – Universal California Grade CARB Compliant Catalytic Converter (Part No.441004)

MagnaFlow – Universal HM Grade Federal / EPA Compliant Catalytic Converter (Part No.99205HM)

MagnaFlow – Direct-Fit California Grade CARB Compliant Catalytic Converter (Part No.4481696)

MagnaFlow – Universal California Grade CARB Compliant Catalytic Converter (Part No.3322305)

MagnaFlow – Universal Standard Grade Federal / EPA Compliant Catalytic Converter (Part No.53005)

Felpro – Exhaust Manifold Gasket Set (Part No.MS 94532)

Felpro – Exhaust Manifold Gasket Set (Part No.MS 94611)

Walker – CalCat CARB Universal Catalytic Converter – 2.25" Inlet (ID) 2.25" Outlet (ID) (Part No.82614)

MagnaFlow – Semi-Direct Fit OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.51597)

MagnaFlow – Universal HM Grade Federal / EPA Compliant Catalytic Converter (Part No.99205HM)

MagnaFlow – Universal HM Grade Federal / EPA Compliant Catalytic Converter (Part No.99004HM)

MagnaFlow – Universal OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.51004)

MagnaFlow – Universal OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.51205)

MagnaFlow – Direct-Fit California Grade CARB Compliant Catalytic Converter (Part No.452992)

MagnaFlow – Universal California Grade CARB Compliant Catalytic Converter (Part No.448304)

MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.21-286)

MagnaFlow – Semi-Direct Fit HM Grade Federal / EPA Compliant Catalytic Converter (Part No.23771)

Felpro – Exhaust Manifold Gasket Set (Part No.MS 94611)