
Dorman 674-300 Catalytic Converter with Integrated Exhaust Manifold
Dorman 674-300 Catalytic Converter Manifold
Dorman 674-300 is a catalytic converter with integrated exhaust manifold built for direct replacement on select Mazda applications. It combines the manifold and converter in one assembly for 2012-2014 Mazda 2 models, with OE-style fitment and stainless steel construction.
Key Features
- Integrated exhaust manifold and catalytic converter assembly
- Precision-engineered to match original equipment dimensions and layout
- Stainless steel converter body for exhaust system durability
- Round inlet port shape for OE-style connection
- Inlet gasket included for installation
- Outlet mounting hardware included for the outlet connection
- Natural finish, regular grade type
- Part number 674-300 for easy identification
Detailed Description
This manifold converter is made for direct replacement on 2012-2014 Mazda 2 vehicles. Dorman 674-300 follows the original equipment design so the exhaust manifold and catalytic converter assembly aligns with the factory mounting points and exhaust routing. The stainless steel body supports long-term exhaust service, while the included gaskets, studs, springs, and heat shield bolts help match the OE service layout. This part cross-references OE-style applications such as 22-064 and ZJ402050XB for the same vehicle coverage.
Common Repair Issues
- Cracked or leaking exhaust manifold assembly
- Restricted exhaust flow from a failing converter
- Exhaust odor or emissions-related fault codes
- Noise from manifold or flange leaks
- Damaged mounting points at the outlet connection
Installation Notes and Tips
Fits 2012-2014 Mazda 2, N/A. Confirm the inlet port shape, outlet mounting hole count, and OE-style manifold converter layout before installation. Replace worn sealing surfaces and follow factory torque specifications during assembly. Verify emissions requirements for your vehicle and region, since this part is not CARB certified.
Quality Assurance
Dorman manufactures this replacement part to match original equipment fit and function on the listed Mazda 2 applications. The design focuses on direct-fit serviceability and consistent exhaust system alignment.
Original: $688.04
-65%$688.04
$240.81Dorman 674-300 Catalytic Converter with Integrated Exhaust Manifold
Dorman 674-300 Catalytic Converter Manifold
Dorman 674-300 is a catalytic converter with integrated exhaust manifold built for direct replacement on select Mazda applications. It combines the manifold and converter in one assembly for 2012-2014 Mazda 2 models, with OE-style fitment and stainless steel construction.
Key Features
- Integrated exhaust manifold and catalytic converter assembly
- Precision-engineered to match original equipment dimensions and layout
- Stainless steel converter body for exhaust system durability
- Round inlet port shape for OE-style connection
- Inlet gasket included for installation
- Outlet mounting hardware included for the outlet connection
- Natural finish, regular grade type
- Part number 674-300 for easy identification
Detailed Description
This manifold converter is made for direct replacement on 2012-2014 Mazda 2 vehicles. Dorman 674-300 follows the original equipment design so the exhaust manifold and catalytic converter assembly aligns with the factory mounting points and exhaust routing. The stainless steel body supports long-term exhaust service, while the included gaskets, studs, springs, and heat shield bolts help match the OE service layout. This part cross-references OE-style applications such as 22-064 and ZJ402050XB for the same vehicle coverage.
Common Repair Issues
- Cracked or leaking exhaust manifold assembly
- Restricted exhaust flow from a failing converter
- Exhaust odor or emissions-related fault codes
- Noise from manifold or flange leaks
- Damaged mounting points at the outlet connection
Installation Notes and Tips
Fits 2012-2014 Mazda 2, N/A. Confirm the inlet port shape, outlet mounting hole count, and OE-style manifold converter layout before installation. Replace worn sealing surfaces and follow factory torque specifications during assembly. Verify emissions requirements for your vehicle and region, since this part is not CARB certified.
Quality Assurance
Dorman manufactures this replacement part to match original equipment fit and function on the listed Mazda 2 applications. The design focuses on direct-fit serviceability and consistent exhaust system alignment.
Product Information
Product Information
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Description
Dorman 674-300 Catalytic Converter Manifold
Dorman 674-300 is a catalytic converter with integrated exhaust manifold built for direct replacement on select Mazda applications. It combines the manifold and converter in one assembly for 2012-2014 Mazda 2 models, with OE-style fitment and stainless steel construction.
Key Features
- Integrated exhaust manifold and catalytic converter assembly
- Precision-engineered to match original equipment dimensions and layout
- Stainless steel converter body for exhaust system durability
- Round inlet port shape for OE-style connection
- Inlet gasket included for installation
- Outlet mounting hardware included for the outlet connection
- Natural finish, regular grade type
- Part number 674-300 for easy identification
Detailed Description
This manifold converter is made for direct replacement on 2012-2014 Mazda 2 vehicles. Dorman 674-300 follows the original equipment design so the exhaust manifold and catalytic converter assembly aligns with the factory mounting points and exhaust routing. The stainless steel body supports long-term exhaust service, while the included gaskets, studs, springs, and heat shield bolts help match the OE service layout. This part cross-references OE-style applications such as 22-064 and ZJ402050XB for the same vehicle coverage.
Common Repair Issues
- Cracked or leaking exhaust manifold assembly
- Restricted exhaust flow from a failing converter
- Exhaust odor or emissions-related fault codes
- Noise from manifold or flange leaks
- Damaged mounting points at the outlet connection
Installation Notes and Tips
Fits 2012-2014 Mazda 2, N/A. Confirm the inlet port shape, outlet mounting hole count, and OE-style manifold converter layout before installation. Replace worn sealing surfaces and follow factory torque specifications during assembly. Verify emissions requirements for your vehicle and region, since this part is not CARB certified.
Quality Assurance
Dorman manufactures this replacement part to match original equipment fit and function on the listed Mazda 2 applications. The design focuses on direct-fit serviceability and consistent exhaust system alignment.












