What specific vehicle years are compatible with this Exhaust Manifold Converter?

The AutoShack Exhaust Manifold Catalytic Converter Passenger Side is compatible with a specific range of Nissan and Infiniti vehicles, including the 2004 Nissan Pathfinder, the 2004-2015 Nissan Armada, the 2004-2015 Nissan Titan, the 2008-2012 Nissan Pathfinder, the 2012-2016 NV3500, the 2012-2016 NV2500, and the 2004-2010 Infiniti QX56.

This exhaust manifold converter—a heavy-duty metal pipe and internal filter that cleans exhaust gases before they leave the engine—is designed for 5.6L V8 engines with 4WD or RWD drivetrains. We selected this unit for our review because it matches the 16479 674-843 OE part number, ensuring the manifold geometry aligns with the specific engine block casting. Because exhaust manifold converters are bolted directly to the cylinder head, verifying the exact year is critical to avoid a port mismatch where the exhaust tubes fail to align with the cylinder ports. This specific unit is EPA compliant but is not legal for sale or use in California, Colorado, New York, or Maine. While the unit includes hardware for assembly and requires no welding, you should confirm your vehicle does not have a mid-year production “split” where the design changed, as some models may vary even within the same production year.

What to Check Before Buying the Exhaust Manifold Converter

Before ordering, verify these technical details to ensure the part functions correctly on your specific vehicle:

You can see our final verdict on the AutoShack Exhaust Manifold Converter review to see if it meets your performance needs.

• Confirm your vehicle’s engine size is a 5.6L V8 to ensure the internal catalyst volume matches the factory flow rate.
• Verify that your local emissions requirements are met, as this part is not legal in CA, CO, NY, or ME.
• Check that your existing O2 sensor does not require relocation, as a mismatch can trigger a check engine light.
• Confirm the flange bolt pattern matches your current setup to avoid needing a conversion plate.
• Use Amazon’s vehicle fitment tool to double-check your specific production date against the 2004-2016 compatibility range.

Comparing the Exhaust Manifold Converter to Other Options

The Exhaust Manifold Converter serves as a direct replacement for stock components, focusing on maintaining original flow rates and durability. If you require a high-flow ceramic substrate for significant performance gains, or if you need a component designed for a different engine displacement, you should look at specialized aftermarket alternatives. This product is intended for owners seeking a standard restoration of factory emissions and exhaust flow rather than high-performance tuning.

If you own a 2004-2016 Nissan or Infiniti truck or SUV with a 5.6L V8 engine and need to restore factory exhaust flow, this product is the correct choice for your repair.

For specific fitment details, find out if the AutoShack unit fits 2012-2015 Nissan Titans before you buy.