The 674-071 Exhaust Manifold Converter is designed specifically for the Hyundai Santa Fe Sport and is compatible with the Theta II engine, but it is not designed for the Lambda engine. Because engine families often share chassis models but have different manifold bolt patterns or port configurations, you must confirm your engine type before purchasing.
This manifold catalytic converter—which functions as a heavy-duty metal housing that filters exhaust gases before they exit the engine—is identified by OE Part Number 285102G445. In our comparison of the exhaust manifold converter options we evaluated, this unit weighed 13.97 pounds. Because exhaust manifold converters operate under extreme heat cycles, ensuring the manifold bolts to the head and aligns with the cylinder ports is critical to avoid a port mismatch. You should also verify if the internal substrate material meets your regional fuel standards to prevent melting or clogging. We selected this specific unit for our review because it matches the primary OE specifications for the Santa Fe Sport. If you are unsure about the flow rate’s impact on your ECU, check the manufacturer’s compatibility page to see if the unit triggers specific “Check Engine” codes.
What to Check Before Buying the Manifold Catalytic Converter
Before ordering, verify these technical details to ensure the unit fits and functions correctly on your vehicle.
- Confirm your engine is the Theta II family rather than the Lambda engine to ensure the bolt patterns align.
- Verify that the manifold has sufficient clearance from the front bumper and heat shields to seat properly.
- Check if the box includes a specific gasket kit, as using the wrong gasket material can lead to immediate failure.
- Consult a qualified installer to determine the specific torque sequence and thread locker required for your engine block.
- Verify that your region’s fuel sulfur content is compatible with the converter’s substrate material.
Comparing the Manifold Catalytic Converter to Other Options
The Manifold Catalytic Converter serves as a direct replacement for the factory unit, providing a standard fit for the Hyundai Santa Fe Sport. Buyers looking for high-flow ceramic substrates might consider alternatives if they prioritize maximum exhaust flow over standard OE specifications. However, if you need a part that maintains the original manifold geometry and weight of 13.97 pounds to ensure reliability, this specific converter is the standard choice. You should look at other options only if your specific engine requirements deviate from the standard Hyundai Theta II configuration.
If your vehicle uses the Theta II engine and you require a direct OE-style replacement for the Santa Fe Sport, you should choose this Manifold Catalytic Converter.
If you are looking for a specific fit, see our top-rated Nissan Altima options to find the right manifold converter.
Manifold Catalytic Converter for Hyundai Santa Fe Sport
$159 price checked August 2026
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