MagnaFlow Direct-Fit Manifold Catalytic Converter - Nissan Altima 2.5L 2004-2005

MagnaFlow 5531293 is a direct-fit manifold catalytic converter that replaces the factory exhaust manifold and close-coupled converter as a single bolt-in assembly, with no cutting or welding required. The spun stainless steel body houses a ceramic substrate, measures 19 in overall with a 3.25 in converter body, and uses flanged inlet and outlet connections plus one sensor port. High strength 16 gauge 409 stainless steel tubing is mandrel bent to retain OE flow geometry, and 308 stainless steel MIG welds resist corrosion. It is CARB certified under Executive Order D-193-175 for legal installation in California and CARB states, and ships with the gaskets and hardware needed to fit it.

Specifications

This part fits:

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy