MagnaFlow OEM Grade Front Catalytic Converter - Nissan Maxima 3.5L 2009-2021 - 52129

MagnaFlow's OEM Grade converter replaces the front rearward bank converter on the transverse 3.5L V6, the unit closest to the firewall, and bolts into the factory location without cutting or welding. The compact spun body measures 11.875 in overall over a ceramic substrate, built from 16 gauge 409 stainless steel tubing with 308 stainless steel MIG welds. Flange inlet and outlet connections carry a single post converter oxygen sensor port, and a crush ring gasket with five bolts and eight nuts is included. This converter is built to Federal EPA standards and is not legal for sale or installation in California, Colorado, or New York.

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