Dorman 674-037 Manifold Converter Exhaust Manifold with Integrated Catalytic Converter

The Dorman 674-037 is a direct-fit manifold converter — an exhaust manifold with an integrated catalytic converter — engineered as a reliable OE replacement. Combining two critical exhaust components into a single unit simplifies installation and restores proper exhaust flow and emissions control performance.

Key Features:

• Direct OE replacement design for precise fit and function
• Integrates the exhaust manifold and catalytic converter into one assembly
• Manufactured to meet federal EPA emissions standards
• Not CARB compliant — not legal for sale or use in California or other CARB-regulated states
• Constructed from durable materials to withstand extreme exhaust heat and cycling
• Helps restore proper engine backpressure and exhaust scavenging
• Eliminates the need to source and install separate manifold and converter components

Dorman Products is a leading supplier of OE-quality replacement automotive parts. The 674-037 manifold converter is designed for straightforward installation using factory mounting points, making it an ideal solution for professional technicians and experienced DIYers restoring exhaust system integrity.

Note: This part is not compliant with California Air Resources Board (CARB) regulations and cannot be legally sold or installed on vehicles registered in California, Maine, or other states that follow CARB emissions standards.