2012 Mazda 6 Exhaust Manifold and Headers

Please Select your Vehicle to See Exact Fit Parts

Keep Your 2012 Mazda 6 in Top Shape with a Quality Exhaust Manifold and Header

When it comes to maintaining or upgrading your 2012 Mazda 6, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Exhaust Manifold and Header for your 6. We currently carry a top Exhaust Manifold and Header in stock that is built to last. Whether you’re replacing a damaged Exhaust Manifold and Header or looking to upgrade, our selection for the 2012 Mazda 6 ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.

Explore Related Parts

And while you’re here, don’t forget to check out related part categories like Catalytic Converters and Exhaust Mufflers to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 2012 Mazda 6 running smoothly and looking great.

Essential 2012 Mazda 6 Exhaust Manifold and Headers

MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.51974)

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

from

$821.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 51974. 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 Manifold Catalytic Converter is designed to fit the 2006-2008 Mazda 6 2.3L. MagnaFlow 51974 includes (1) Flange Gasket, (1) Donut Gasket and interchanges with OE parts L327-13-450, L327-13-450A, L327-13-450B, L327-13-450C, L327-13-450F, L362-13-45X, L362-13-45XB, L362-13-45XC, L362-13-45XD, L362-13-45XE, L362-13-45XF. 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
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
See More

Dorman – Direct Fit Exhaust Manifold: without Heat Shield (Part No.674-936)

Direct Fit Exhaust Manifold: without Heat Shield

from

$638.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:
  • Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
  • Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
  • Complete repair – includes all necessary gaskets and downpipe hardware
  • Trustworthy design – built by industry leader in aftermarket manifolds
See More

Dorman – Manifold Converter – Not CARB Compliant – Not For Sale – NY – CA – ME (Part No.674-838)

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

from

$485.99
This catalytic converter with integrated exhaust manifold – a.k.a. manifold converter – is precision-engineered to match the original equipment on specific vehicle years, makes and models for a reliable replacement.

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

MagnaFlow – Direct-Fit HM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.50575)

Direct-Fit HM Grade Federal / EPA Compliant Manifold Catalytic Converter

from

$573.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 50575. 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. MagnaFlow 50575 includes (2) Nuts, (1) Flange Gasket, (2) Bolts and interchanges with OE parts AJ48-20-50X, AJ48-20-50XA, AJ48-20-50XB, AJ48-20-50XC. 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:
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
See More

MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.51910)

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

from

$601.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 51910. 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 Manifold Catalytic Converter is designed to fit the 2006-2008 Mazda 6 3.0L. MagnaFlow 51910 includes (2) Bolts, (1) Flange Gasket, (2) Nuts and interchanges with OE parts AJ48-20-50X, AJ48-20-50XA, AJ48-20-50XB, AJ48-20-50XC. 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
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
See More

Walker – Ultra EPA Direct Fit Catalytic Converter with Integrated Exhaust Manifold (Part No.16878)

Ultra EPA Direct Fit Catalytic Converter with Integrated Exhaust Manifold

from

$1006.00
Designed to comply with EPA emissions requirements while delivering premium performance with assured compliance, Walker® Ultra® EPA-Compliant Manifold Converters are available for import and domestic OBDII (1996 and newer) vehicles.

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.
  • DIRECT-FIT DESIGN –áBolt-off, bolt-onáOE-style converter with integrated manifold assemblies that attach directly to engine cylinder head and match all downstream connections
  • KEEPS CHECK ENGINE LIGHT OFFáFOR EMISSIONS CODESá– OE-style high technologyáwashcoatáand optimaláprecious metal load delivers required reduction in tailpipe emissions to match vehicle application
  • STRONGáANDáDURABLE –áFeaturesáthick OE-style flangesáand manifoldsáfor strengtháand durability
  • APPLICATION-ENGINEERED –áFeatures 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 emissions and structural integrity warranty. Visit Walkerexhaust.com for details.
See More

Dorman – Manifold Converter – Not CARB Compliant – Not For Sale – NY – CA – ME (Part No.674-837)

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

from

$601.99
This catalytic converter with integrated exhaust manifold – a.k.a. manifold converter – is precision-engineered to match the original equipment on specific vehicle years, makes and models for a reliable replacement.

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

MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.51977)

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

from

$712.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 51977. 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 Manifold Catalytic Converter is designed to fit the 2006-2008 Mazda 6 3.0L. MagnaFlow 51977 includes (1) Flange Gasket, (3) Nuts, (3) Bolts and interchanges with OE parts AJ48-20-55X, AJ48-20-55XA, AJ48-20-55XB, AJ48-20-55XC. 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:
  • 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
See More

MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.51851)

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

from

$1155.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 51851. 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 Manifold Catalytic Converter is designed to fit the 2009-2013 Mazda 6 2.5L. MagnaFlow 51851 includes (1) Donut Gasket, (1) Flange Gasket and interchanges with OE parts L505-20-50X, L505-20-50XA, L505-20-50XB, L505-20-50XC, L505-20-50XD, L505-20-50XE, L506-20-50XA, L506-20-50XB, L506-20-50XC, L506-20-50XD, L506-20-50XE, L506-20-50XF, L506-20-50XG, L555-20-50XA, L555-20-50XB, L555-20-50XC. 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
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
See More

Flowtech – Flowtech Upright Headers (Part No.12160FLT)

Flowtech Upright Headers

from

$227.99
Product Features:
  • CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
  • Heavy duty 16-gauge 409SS tubing for increased strength and durability
  • 1-1/2″ primary tubing diameter for increased exhaust flow, increasing performance and improved throttle response
  • 2.5″ collector for maximum strength and exhaust flow
  • Extra thick header flange for a leak-free seal and maximum strength
  • Welded-in collector merge spear to control exhaust gas re-entry into primary tubes
See More

Dorman – Manifold Converter – Not CARB Compliant – Not For Sale – NY – CA – ME (Part No.674-866)

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

from

$404.99
This catalytic converter with integrated exhaust manifold – a.k.a. manifold converter – is precision-engineered to match the original equipment on specific vehicle years, makes and models for a reliable replacement.

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

MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.52312)

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

from

$1030.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 52312. 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 Manifold Catalytic Converter is designed to fit the 2006-2007 Mazda 6 2.3L & 2007-2012 Mazda CX-7 2.3L. MagnaFlow 52312 includes (1) Donut Gasket, (4) Nuts, (1) Flange Gasket and interchanges with OE parts L380-20-50XE, L380-20-50XF, L3D4-20-50XC, L3K2-20-50X, L3K2-20-50XA, L3L9-20-50X. 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
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
See More

Most Popular Exhaust Manifold and Header for 2012 Mazda 6s

Enhance your 2012 Mazda 6 with this popular Exhaust Manifold and Header we have in stock, for $1,155.99.

MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.51851)

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

from

$1155.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 51851. 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 Manifold Catalytic Converter is designed to fit the 2009-2013 Mazda 6 2.5L. MagnaFlow 51851 includes (1) Donut Gasket, (1) Flange Gasket and interchanges with OE parts L505-20-50X, L505-20-50XA, L505-20-50XB, L505-20-50XC, L505-20-50XD, L505-20-50XE, L506-20-50XA, L506-20-50XB, L506-20-50XC, L506-20-50XD, L506-20-50XE, L506-20-50XF, L506-20-50XG, L555-20-50XA, L555-20-50XB, L555-20-50XC. 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
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
See More

FAQs for 2012 Mazda 6 Exhaust Manifold and Headers

What’s the price range for 2012 Mazda 6 Exhaust Manifold and Headers?

We currently have just one Exhaust Manifold and Headers for the 2012 Mazda 6 in stock: Direct-Fit OEM Grade Federal / EPA Compliant Manifold Catalytic Converter and it costs $1,155.99.

Does Advance Auto Parts sell Exhaust Manifold and Headers for other Mazda 6 model years?

Yes, we carry Exhaust Manifold and Headers for 9 model years of Mazda 6s between 2003 and 2013. The following model years are the most popular for Exhaust Manifold and Header purchases: 2008, 2007, 2006, 2005, 2004, 2003, 2010, 2011, and 2013.

Does Advance Auto Parts sell Exhaust Manifold and Headers for any other 2012 Mazda models?

Yes. We stock Exhaust Manifold and Headers for 3 other popular 2012 Mazda models. Some of the most popular are 2012 3 Exhaust Manifold and Headers, 2012 CX-7 Exhaust Manifold and Headers, 2012 2 Exhaust Manifold and Headers, and 2012 MX-5 Miata Exhaust Manifold and Headers.

What types of Exhaust Manifold and Headers do you sell for my 2012 Mazda 6?

We currently have just 1 Exhaust Manifold and Header in stock for a 2012 Mazda 6, and as of 3/1/26, it is an Exhaust Manifold and Header.

Can I get help with 2012 Mazda 6 Exhaust Manifold and Header orders?

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

What is your return policy for Mazda 6 Exhaust Manifold and Headers?

Advance Auto Parts keeps returns simple. For new Mazda 6 Exhaust Manifold and Headers and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.