Yes, the A-Premium 2-PC Exhaust Manifold Catalytic Converter Kit is designed to fit the 2007-2012 Nissan Altima 2.5L, including the Base, S, and SL trims.
The Altima Exhaust Kit is engineered for the L4 2.5L engine and corresponds to several OE reference numbers, including 16593, 40800, and 641302. It features a stainless steel body and includes both the front and rear units with a 5-bolt welded flange on the front inlet and a 3-bolt welded flange on the rear. Because this kit is a direct-fit manifold and converter assembly—a metal pipe and housing that cleans exhaust gases before they exit the vehicle—it is designed to bolt directly to the engine head without requiring custom welding or pipe modification. We selected this kit for our review because it includes the necessary gaskets and bolts for a complete installation. Confirming the specific flow rate for your 2.5L engine is important because an incorrect internal substrate size can cause backpressure and trigger a “Check Engine” light. This kit meets Federal Emissions standards, though it is restricted in CA, NY, CO, and ME.
What to Check Before Buying the Altima Exhaust Kit
Before ordering, verify these specific details to ensure the kit meets your vehicle’s requirements and local regulations.
- Confirm your local state’s emissions laws, as this kit is not rated for CARB compliance in restricted states.
- Verify that your specific engine block casting matches the manifold geometry for the 16593 or 40800 reference numbers.
- Check with a qualified installer for the specific torque specifications and thread-locker requirements for the manifold-to-head bolts to avoid stripping cylinder head threads.
- Ensure the manifold material requirements for your region do not require specific heat-cycling procedures to prevent cracking.
- Verify that the outlet flange bolt counts (3-bolt front, 2-bolt rear) match your existing exhaust pipe connections.
Comparing the Altima Exhaust Kit to Other Options
The Altima Exhaust Kit provides a stainless steel construction which offers different durability characteristics than the OE cast iron manifolds used as a baseline. Buyers looking for a high-flow ceramic substrate may prefer other options if they prioritize maximum exhaust flow over the standard federal emissions configuration provided here. If you require a kit that is specifically certified for California’s stricter environmental standards, you should look for a CARB-compliant alternative instead of this federal-spec model.
You can also view the EPA compliance standards for this specific A-Premium exhaust manifold converter.
If you own a 2007-2012 Nissan Altima 2.5L and need a direct-fit replacement that includes all necessary mounting hardware, this kit is the correct choice for your vehicle.
Nissan Altima 2007-2012 2.5L Exhaust Manifold Kit
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$172.97 price checked August 2026
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