Front Exhaust Manifold Catalytic Converter for Nissan Altima 2.5L (2002–2006) 🚗🔧

Restore Emissions Performance with OEM-Grade Precision 👌✨

Looking to replace your worn-out exhaust component with something that fits like it originally did? This Front Exhaust Manifold Catalytic Converter is designed specifically for the Nissan Altima 2.5L Sedans from 2002 to 2006 and the 2002–2005 Sentra with the same engine. Featuring exact fitment to OEM part numbers (40810, 674-659, etc.), it ensures a seamless installation—no cutting, welding, or fabrication required! 🔩

EPA-approved (excluding California and New York), this converter comes brand-new and ready to go. Its precision design restores emissions compliance, improves engine efficiency, and cuts down on exhaust noise—all while delivering the durability Nissan drivers expect. 🌿🛠️

🚙 Why This Catalytic Converter is the Ideal Choice for Nissan 2.5L Owners

• Perfect Fit Design: Matches OEM part numbers for 2002–2006 Altima and 2002–2005 Sentra, ensuring perfect alignment with manifold ports.
• Brands You Trust: Maintains Nissan’s original exhaust routing and sound levels.
• Easy Bolt-On Installation: Installs directly to the front exhaust manifold—no extra modifications necessary.
• New and Durable: Comes brand-new with a fresh gasket for leak-free sealing.
• EPA-Approved: Meets federal standards (not approved in CA/NY), so emissions tests should pass smoothly.

📊 Key Details at a Glance

❓ Common Questions Answered

Will this converter fit my Altima or Sentra 2.5L?

Yes. It’s crafted to match the flange dimensions and specs of stock manifold converters for Altima 2002–2006 (2.5L) and Sentra 2002–2005 (2.5L). Remember to compare your OEM part number to ensure compatibility. 🛠️

Is it legal in my state?

This converter is EPA-approved for resale and use nationwide except in California and New York, due to stricter emissions regulations. 🌎

Can I install it myself?

If you’re comfortable with basic under-vehicle repairs, yes! Just unbolt the old piece and bolt this new one in place. A torque wrench, bolts, and gasket are all you’ll need. 🔧💪 If you’re unsure, a mechanic can handle it in under an hour.

What benefits will I see?

You can expect restored emissions compliance, smoother idle, reduced exhaust noise, and a refreshed exhaust system with brand-new catalytic efficiency. 🛡️

💡 Why Replace the Front Manifold Converter Now?

A failing front converter can cause:

• 🔴 Poor emissions test results
• ⚠️ Check Engine Light or P0420/43 codes
• 🛠️ Rough idle or reduced fuel efficiency
• 🔊 Increased exhaust noise

Installing a high-quality, OEM-fit converter like this one resolves these issues and restores proper function and emissions compliance. Drive confidently into your next inspection! ✅

🛒 Ready for a Worry-Free Drive?

Don’t wait until your converter completely fails. Upgrade now with this OEM-matching, EPA-approved catalytic converter specifically made for Nissan 2.5L engines. Reliable, easy to install, and built to last—get your Altima or Sentra back to optimal performance today! 🚗🔧