FOMIUZY Rear Catalytic Converter Kit for Nissan Altima 2.5L (2007–2018) — Direct-Fit, EPA Compliant, Aluminized Stainless

FOMIUZY's Rear Catalytic Converter Kit is a direct-fit EPA-compliant replacement designed to restore proper exhaust filtration and fit the 2007–2018 Nissan Altima 2.5L without modification.

This replacement catalytic converter kit is produced to match OEM fit and function for Nissan Altima 2.5L models from 2007 through 2018. Built from corrosion-resistant aluminized stainless steel with a high-temperature ceramic carrier, it is intended to resolve catalytic faults, reduce exhaust noise, and return the vehicle’s exhaust flow and emissions control to expected performance. The kit ships as a complete rear converter assembly and is factory-tested to meet internal quality standards. Note: verify your original part number before purchase and follow the recommended installation steps.

Will this converter fit my 2007–2018 Nissan Altima 2.5L?

Yes—the kit is manufactured as a direct replacement for the rear catalytic converter on Nissan Altima 2.5L models from 2007 to 2018. It was engineered to align with the original mounting points and exhaust geometry for a straightforward swap.

• Compatibility specified for 2007–2018 Nissan Altima 2.5L models.
• Direct-fit design to match factory flanges and hangers.
• Always compare your vehicle’s existing part number to confirm fitment.

How does installation work and should I weld or bolt it?

The kit is designed for a direct-bolt installation to the existing exhaust system; once bolted in place, welding the joint is recommended to improve sealing and prevent leaks. Bolting makes alignment easy, and a subsequent weld enhances durability and exhaust tightness under heat cycles.

• Bolt-on installation for initial alignment and secure fit.
• Recommended post-install weld for improved sealing and longevity.
• Use replacement gaskets and grade-appropriate bolts where applicable.

What materials and construction features improve durability?

The assembly uses aluminized stainless steel piping to resist corrosion and a double-layer, high-temperature ceramic carrier to maintain flow and thermal stability. Those construction choices aim to increase service life compared with lower-grade aftermarket parts.

• Aluminized stainless steel body reduces rust and corrosion.
• Double-layer ceramic core for higher flow area and thermal resilience.
• Factory-testing to meet or exceed internal quality benchmarks.

Is this unit compliant with emissions standards and are there sales restrictions?

The converter is produced to meet EPA and OBD‑III style standards for federal emission regions. Due to state-specific emission requirements, it is not available for sale in California, Colorado, New York, and Maine at this time.

• Manufactured to federal EPA-style specifications.
• Not sold for restricted states with higher emissions rules currently listed.
• Lifetime warranty offered by the brand for quality concerns.

Who this is for: This rear catalytic converter kit is intended for Nissan Altima owners (2007–2018, 2.5L) who need a direct-fit replacement for a failed or stolen converter, want to clear related diagnostic codes, or restore quieter, cleaner exhaust operation. It’s suited to DIYers with basic exhaust experience and professional technicians alike; buyers should confirm part numbers, plan to bolt the unit in place, and weld afterward if they want an improved long-term seal. FOMIUZY offers factory-tested units with a lifetime warranty and customer support if any quality concerns arise.