Nissan Altima 2007-2012 2.5L Exhaust Manifold Kit Review: Features Stainless Steel Construction

Where the Altima Exhaust Kit Fits

The A-Premium Nissan Altima 2007-2012 2.5L Exhaust Manifold Kit is for owners seeking an Exhaust Manifold with Converter that matches OE Part Numbers 16593 and 40800 for a precise fit.

A seamless exhaust flow ensures your engine maintains consistent performance and meets the legal requirements for restricted states like CA, NY, CO, and ME. Proper manifold integration allows for optimal gas evacuation without the risk of port mismatches or heat shield interference.

The A-Premium Nissan Altima 2007-2012 2.5L Exhaust Manifold Kit achieves this by utilizing a stainless steel construction and matching multiple OE reference numbers, including 641302 and 18258. It provides a complete assembly with included gaskets and bolts to simplify the replacement process.

This evaluation is based on our comparison of the exhaust manifold converter options we evaluated for this category. We selected this kit for owners who require a specific fit for the 2.5L L4 engine and want a one-year unlimited-mileage guarantee.

The Short Answer on the Altima Exhaust Kit

Owners of different vehicles may prefer to see the best exhaust manifold catalytic converter for jeep wrangler options.

The Specifications That Matter

The inclusion of multiple reference numbers ensures the Altima Exhaust Kit matches specific engine block castings to prevent port mismatch.

Before You Buy: Altima Exhaust Kit Checklist

The first thing to check is your vehicle’s specific engine block casting to ensure the manifold geometry matches your factory mounting points.

• ☐ Verify your engine matches the Nissan Altima Base, S, or SL 2.5L 2007-2012 configuration
• ☐ Confirm your OE part number matches 16593, 40800, 641302, 18258, 674-933, 54782, 324424, 643090, 40919, 58363, or 18343
• ☐ Check state emissions requirements if you live in CA, NY, CO, or ME to ensure Federal Emissions compliance meets local standards
• ☐ Verify the 5 bolt welded flange (front) and 3 bolt welded flange (rear) inlets align with your current exhaust piping
• ☐ Confirm you have a qualified installer to handle the installation of the stainless steel assembly

You should not buy this product if your vehicle uses a different engine displacement or if your local state regulations exceed Federal Emissions standards.

Performance: What the Specs Deliver

Stainless Steel Durability

Stainless steel construction on the Nissan Altima 2007-2012 2.5L Exhaust Manifold Kit ensures the component resists the high-heat oxidation common in exhaust systems. Because this material maintains structural integrity better than standard cordierite or lower-grade alloys, you can expect the manifold to resist corrosion and cracking over long-term operation.

Welded Flange Connections

Welded flange connections on the Altima Exhaust Kit provide the structural security needed to prevent port mismatch or leaks. The front 5-bolt and rear 3-bolt welded flanges ensure a stable mating surface to the engine block, while the specific outlet configurations (3-bolt front and 2-bolt rear) align with the factory geometry. These welds ensure the manifold remains seated under heavy vibration, preventing the exhaust tubes from shifting out of alignment with the cylinder ports.

Federal Emissions Compliance

Federal emissions compliance on this unit means it meets the standards required for operation in most regions, including the listed restricted states of CA, NY, CO, and ME. Because it is EPA compliant, the Altima Exhaust Kit is designed to maintain the required flow characteristics without triggering a code. If you are concerned about a “Check Engine” light, verify that your specific engine block casting matches the provided reference numbers (such as 16593 or 40800) before ordering, as correct geometry is the primary factor in preventing sensor errors.

How the Altima Exhaust Kit Compares to Alternatives

Comparison with Similar Products

The A-Premium Altima Exhaust Kit provides a higher user rating than most alternatives, securing a 4.3 score from 148 buyer ratings.

• The A-Premium Altima Exhaust Kit costs $12.97 more than the US Convertors 516005 Integrated Manifold Catalytic Converter.
• The A-Premium Altima Exhaust Kit provides a one-year unlimited-mileage guarantee, while the US Convertors 516005 Integrated Manifold Catalytic Converter offers a 25,000 mile performance coverage.
• The A-Premium Altima Exhaust Kit costs $4.4 more than the APDTY 112876 Exhaust Manifold Catalytic Converter Assembly.
• The A-Premium Altima Exhaust Kit costs $8.02 more than the Honda Accord Exhaust Manifold Catalytic Converter.
• The A-Premium Altima Exhaust Kit is priced $2.98 higher than the Hyundai Santa Fe Manifold Catalytic Converter.
• The A-Premium Altima Exhaust Kit is priced $2.98 higher than the Hyundai Sonata Tiburon Kia Magentis Optima Manifold Catalytic Converter.

If you require a lower entry price and do not need the specific A-Premium warranty, the US Convertors 516005 Integrated Manifold Catalytic Converter is the more economical option.

Is the stainless steel thick enough to handle heat without rusting out in a year?

The stainless steel construction of the A-Premium Altima Exhaust Kit is designed for durability, though the specific gauge is not listed in the technical specifications.

To ensure long-term resistance to heat and corrosion, you should confirm the specific grade of stainless steel with the manufacturer.

For those shopping for a different make, explore the top exhaust manifold catalytic converter for hyundai santa fe sport choices.

If you need a deeper technical dive, see how an exhaust manifold converter works in our guide.

The Altima Exhaust Kit: Remaining Questions

Is the Nissan Altima 2007-2012 2.5L Exhaust Manifold Kit worth it compared to a used OEM part?

Choosing between new and used components depends on your priority for reliability versus original manufacturer specifications. The Altima Exhaust Kit provides a one-year unlimited-mileage guarantee and new stainless steel construction for $172.97, which may offer more long-term predictability than a used part with unknown wear.

Does the Nissan Altima 2007-2012 2.5L Exhaust Manifold Kit include gaskets and hardware?

Yes, the Altima Exhaust Kit includes the necessary gaskets and bolts as part of the package. This means you do not need to source additional hardware separately to complete the installation of the front and rear units.

Will this kit fit my 2007-2012 Nissan Altima?

Yes, the Altima Exhaust Kit is designed for the 2.5L L4 engines found in the Base, S, and SL trims. It matches the specific requirements for the 16593 and 40800 reference numbers used in these vehicle models.

Is the Nissan Altima 2007-2012 2.5L Exhaust Manifold Kit EPA compliant?

Yes, the Altima Exhaust Kit meets Federal Emissions specifications and is EPA compliant. You can use it in most regions, though it is specifically noted for use in restricted states such as CA, NY, CO, and ME.

Is the Altima Exhaust Kit Right for You?

The Altima Exhaust Kit suits 5 kinds of buyer and is the wrong choice for 3 jobs, listed below with the reason for each.

Where to Buy the Altima Exhaust Kit

These retailers sell Exhaust Manifold Converter generally – we do not track which of them has this particular model in stock, so check availability and the current price with the retailer before making a trip.

• O’Reilly Auto Parts (online and physical stores) — local availability and in-store returns
• Advance Auto Parts (online and physical stores) — local availability and in-store returns
• RockAuto (online only) — extensive catalog breadth and competitive pricing
• Summit Racing Equipment (online only) — specialist performance and aftermarket options
• Amazon (online only) — wide variety of third-party brands
• eBay (online only) — finding specific OE replacements and used parts
• AutoZone (online and physical stores) — local availability and in-store returns

Final Verdict on the Altima Exhaust Kit

If you own a 2007-2012 Nissan Altima with a 2.5L engine and need a replacement manifold that meets federal emissions standards, the A-Premium Nissan Altima Exhaust Kit is the correct choice at around $172.97.

The Altima Exhaust Kit provides a high-durability stainless steel body and includes all necessary gaskets and bolts, backed by a 4.3 rating from 148 buyers.

Skip it if: your specific engine block casting does not align with the 16593 or 40800 reference numbers, or if you require a manifold that is not compatible with the restricted states of CA, NY, CO, and ME.

Check the current price on Amazon