}
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}
}
Brand: MagnaflowSKU / Part #: MAG21-121
- Regular price
- $570.00
- Regular price
-
$570.00 - Sale price
- $570.00
- Unit price
- per
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Overview
Efficiency codes on a 2011-2022 INFINITI QX56 / QX80 5.6L usually mean the original catalyst is spent. MagnaFlow's OEM Grade 21-121 is built for exactly that job and bolts in without cutting or welding. It is catalogued for the 2011-2013 INFINITI QX56 (Base), 2014-2022 INFINITI QX80 (Base, Limited), 2017-2023 Nissan Armada (Platinum, Platinum Reserve, SL, SV) and 2016-2021 Nissan TITAN XD, plus 3 more models in the table below. This is the underbody converter position, so match it to the unit you are replacing. Shipping weight is about 11 lb.
Features
- OEM Grade loading sized for the 5.6L OBD-II catalyst monitor
- Underbody position
- Fits 2011-2013 INFINITI QX56: Base
- Fits 2014-2022 INFINITI QX80: Base, Limited
- Fits 2017-2023 Nissan Armada: Platinum, Platinum Reserve, SL, SV
- 4 further models listed in the fitment table
What is in the box
- Gaskets and mounting hardware for installation
Specs
| Part number | 21-121 |
| Type | OEM Grade Direct-Fit Catalytic Converter |
| Emissions | Federal/EPA compliant (not for CARB states) |
| Grade | OEM Grade |
| Material | 16-gauge 409 stainless steel |
| Shipping weight | 11 lb |
Construction
- OEM Grade catalyst loading for engines with sensitive OBD-II efficiency monitoring
- Bolts in where the original sat, with no cutting or welding
- Corrosion-resistant 16-gauge 409 stainless construction
- Spun body closed with a single laser-fusion weld to resist leaks
- Mandrel-bent inlet and outlet pipes keep factory flow
- OE-sized 410 stainless hangers
- 308 stainless MIG welds
- Shape developed from 3D scans of the original part
Installation
Direct-fit and bolt-on; a capable DIYer can install it with the right tools, though professional installation is recommended.
Fitment notes
Sold for federal (EPA) emissions use only; it cannot be sold or installed in California, Colorado or New York. Check the fitment table below against your vehicle, including trim and engine.
Fitment
| Make | Model | Chassis | Year | Engine |
|---|---|---|---|---|
| INFINITI | QX56 (Base) | — | 2011-2013 | 5.6L |
| INFINITI | QX80 (Base, Limited) | — | 2014-2022 | 5.6L |
| Nissan | Armada (Platinum, Platinum Reserve, SL, SV) | — | 2017-2023 | 5.6L |
| Nissan | TITAN XD | — | 2016-2021 | 5.6L |
| Nissan | NV3500 | — | 2018-2021 | 5.6L |
| Nissan | NV2500 | — | 2018-2021 | 5.6L |
| Nissan | TITAN | — | 2017-2019 | 5.6L |
Fitment
| Year | Make | Model |
|---|---|---|
| 2011–2013 | Infiniti | QX56 |
| 2014–2022 | Infiniti | QX80 |
| 2017–2023 | Nissan | Armada |
| 2016–2021 | Nissan | TITAN XD |
| 2018–2021 | Nissan | NV3500 |
| 2018–2021 | Nissan | NV2500 |
| 2017–2019 | Nissan | TITAN |
Not sure? Text us your VIN and we’ll confirm.
Shipping & returns
Shipping: Orders ship via UPS, FedEx or USPS, from our facility near Los Angeles or directly from the manufacturer. Rates for many items are weight-based and shown at checkout. If you need it by a certain date, text us before you order.
Returns: Unused items in brand-new condition and original packaging can be returned within 30 days of the invoice date, with a 25% restocking fee unless otherwise specified. In some cases we can offer a lower fee with the balance as store credit. Shipping charges aren't refundable in either direction unless approved by AutoTalent.
Not returnable: special-order or custom items, and anything that has been installed, modified or altered.
Cancellations: free if the item is out of stock or we miss the ETA you agreed to. Other cancellations carry a 5% processing fee to cover card fees we can't recover. Special-order items can't be cancelled.
Damaged in transit? Report it to the carrier and to us within 48 hours, keep all packaging, and don't send anything back without our written approval.
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