Details
Product Information
This is MagnaFlow's California Grade converter, tested to California Air Resources Board guidelines for legal use in California and CARB restricted states on the vehicles in the chart. The spun body is 16 gauge 409 stainless with mandrel-bent tubing and 308 stainless MIG welds, and a single laser fusion weld replaces the multi-pass seams that usually leak first. Its compact low-mass construction reaches operating temperature quickly, which is what keeps the downstream O2 readings in range and the check engine light off. OE-sized barbed 410 stainless hangers control noise and vibration, and hardware is included so corroded factory fasteners can be discarded.
Specifications
| Type | Direct-fit spun body catalytic converter (MagnaFlow California Grade) |
| Material | 16 gauge 409 stainless steel, 308 stainless MIG welds, 410 stainless hangers |
| Emissions | CARB compliant, legal in California and CARB states for the listed vehicles |
| Series | California |
| Finish | Stainless |
| Body Type | Spun |
| Inlet Type | Flange |
| Clamps Included | No |
| Hangers Included | Yes |
| Legality | Legal for sale in all 50 states including California, Colorado, New York and Maine. Installation is permitted only if the vehicle's Executive Order number and Engine Family Number appear in this converter's CARB Executive Order. |
| Quantity | 1 |
| Part Number | 551128 |
| OEM Replacement | 208A3-9N70A, 208A3-JA21A |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2013-2014 | Nissan | Altima | S |
| 2007-2009 | Nissan | Altima | SE |
| 2007-2009, 2013-2014 | Nissan | Altima | SL |
| 2010-2012 | Nissan | Altima | SR |
| 2013-2014 | Nissan | Altima | SV |
| 2009-2014 | Nissan | Maxima | S |
| 2009-2014 | Nissan | Maxima | SV |
Shipping
- In stock orders typically 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






