Dorman 673-821 Exhaust Manifold with Integrated Catalytic Converter CARB Compliant

The Dorman 673-821 is a direct-fit exhaust manifold with an integrated catalytic converter, engineered as a precise OE replacement for select vehicles. This combination unit replaces both the exhaust manifold and the factory catalytic converter in a single assembly, simplifying installation and restoring proper exhaust flow and emissions performance.

Dorman designs this manifold converter to meet strict California Air Resources Board (CARB) compliance standards, making it legal for sale and use in California and all other U.S. states. The unit is manufactured to match OEM dimensions and port configurations for a bolt-on fit with no cutting, welding, or modification required.

Key Features:

• Direct OE replacement — combines exhaust manifold and catalytic converter in one unit
• CARB Compliant — meets California emissions standards and is 50-state legal
• Engineered to restore factory exhaust flow and reduce harmful emissions
• Manufactured to OEM specifications for precise fitment and leak-free sealing
• Durable construction designed to withstand high exhaust temperatures
• Eliminates the need to source and install separate manifold and converter components

The Dorman 673-821 is an ideal solution for restoring emissions compliance and exhaust integrity when the original manifold-converter assembly has cracked, failed, or deteriorated. As with all Dorman OE FIX components, this part is built to address common failure points found in the original equipment design.