MagnaFlow OEM-Grade direct-fit underbody catalytic converter (21-121) for the 2014-2021 Infiniti QX80 5.6L V8, 2017-2019 Nissan Titan and related Armada/Titan XD/NV models. Spun-body 409 stainless construction with a single laser-fusion weld replicates the OE design for smooth flow and a leak-resistant seal; installs with no cutting or welding and includes gaskets and hardware. Meets California or Federal/EPA emissions for OBDII registered vehicles.
Specifications
| Type | Direct-fit underbody catalytic converter |
| Grade | OEM Grade |
| Material | 409 stainless steel (spun body) |
| Hardware | Includes gaskets and hardware |
| Position | Underbody |
| OEM Replacement | 20020-1LA0E, 20020-1LA0A |
| Emissions | Meets California or Federal/EPA emissions (OBDII) |
| Part Number | 21-121 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2011-2013 | INFINITI | QX56 | Base |
| 2014-2018 | INFINITI | QX80 | Base |
| 2016-2017,2019-2020 | INFINITI | QX80 | Limited |
| 2019-2021 | INFINITI | QX80 | Luxe |
| 2021 | INFINITI | QX80 | Premium Select |
| 2021 | INFINITI | QX80 | Sensory |
| 2021-2022 | Nissan | Armada | Midnight Edition |
| 2017-2018,2020-2022 | Nissan | Armada | Platinum |
| 2018,2020 | Nissan | Armada | Platinum Reserve |
| 2021-2022 | Nissan | Armada | S |
| 2017-2018,2020-2022 | Nissan | Armada | SL |
| 2017-2018,2020-2022 | Nissan | Armada | SV |
| 2018-2021 | Nissan | NV2500 | S |
| 2018-2021 | Nissan | NV2500 | SV |
| 2018-2021 | Nissan | NV3500 | S |
| 2018-2021 | Nissan | NV3500 | SL |
| 2018-2021 | Nissan | NV3500 | SV |
| 2017-2019 | Nissan | TITAN | Platinum Reserve |
| 2017-2019 | Nissan | TITAN | PRO-4X |
| 2017-2019 | Nissan | TITAN | S |
| 2017-2019 | Nissan | TITAN | SL |
| 2017-2019 | Nissan | TITAN | SV |
| 2016-2021 | Nissan | TITAN XD | Platinum Reserve |
| 2016-2021 | Nissan | TITAN XD | PRO-4X |
| 2016-2021 | Nissan | TITAN XD | S |
| 2016-2021 | Nissan | TITAN XD | SL |
| 2016-2021 | Nissan | TITAN XD | SV |
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- 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 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
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