Dorman 674-030 Catalytic Converter with Integrated Exhaust Manifold - Front

Overview of Dorman Catalytic Converter with Integrated Exhaust Manifold

The Dorman 674-030 catalytic converter with integrated exhaust manifold is designed for specific Toyota, Scion, and Subaru models. This component combines the exhaust manifold and catalytic converter into a single unit, providing a streamlined solution for exhaust emissions control and engine performance.

• Compatible with Toyota 86, Scion FR-S, and Subaru BRZ models
• Constructed from durable stainless steel for corrosion resistance
• Includes two inlet gaskets and one outlet gasket for proper sealing
• Features two sensor ports for oxygen sensors
• Flanged outlet design with two mounting holes
• Overall length of 22 inches and converter body length of 4 inches
• Round inlet ports with six mounting holes

Product Details and Specifications

The Dorman 674-030 catalytic converter integrates the exhaust manifold and converter body, simplifying installation and reducing potential leak points. Its stainless steel construction ensures durability under high-temperature conditions typical of exhaust systems. The converter body measures 4 inches in length, while the entire assembly spans 22 inches. It features two round inlet ports with six mounting holes, accommodating a dual-inlet setup, and a single flanged outlet with two mounting holes. The unit includes two sensor ports to support oxygen sensors necessary for engine management systems. This part is not CARB certified and is intended for use in states without California emissions requirements.

Compatible Vehicles and Applications

• Toyota 86
• Scion FR-S
• Subaru BRZ

This catalytic converter with integrated exhaust manifold is designed specifically for these models, ensuring proper fitment and function. It addresses exhaust emissions and helps maintain engine efficiency by facilitating proper catalytic conversion of exhaust gases.

Common Issues Addressed by This Part

• Exhaust leaks caused by damaged or cracked exhaust manifolds
• Failed catalytic converter leading to increased emissions
• Check engine light triggered by faulty oxygen sensor readings
• Reduced engine performance due to exhaust backpressure
• Corrosion or rust damage to original exhaust manifold or converter

Installation Notes and Tips

Installation requires removal of the existing exhaust manifold and catalytic converter assembly. The Dorman 674-030 includes inlet gaskets and outlet gasket for sealing but does not include inlet mounting hardware. Ensure all mounting surfaces are clean and free of debris before installation. Proper torque specifications should be followed to avoid leaks. Oxygen sensors must be transferred or replaced as needed to maintain engine management system functionality.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. This catalytic converter with integrated exhaust manifold is constructed from stainless steel to resist corrosion and withstand high operating temperatures. While this part is not CARB certified, it is designed for reliable performance in compatible Toyota 86, Scion FR-S, and Subaru BRZ vehicles. Warranty coverage details should be confirmed with the original product documentation or supplier.