This MagnaFlow OEM Grade converter is the primary catalyst for the E400 3.0L and installs with the proper tools, no cutting or welding required. The 23.25 in assembly takes a 2.25 in inlet and a 2 in outlet, and MagnaFlow replicates the OE spun body so a single laser fusion weld replaces the seams where leaks usually start, while the compact low-mass shell reaches light-off temperature faster for better thermal efficiency. Tubing is high-strength 16 gauge 409 stainless steel with mandrel bends and 308 stainless steel MIG welds over a ceramic substrate. The housing carries two oxygen sensor ports, pre-converter and midbed, matching the factory sensor layout so the check engine light stays off, and four mounting nuts are supplied. It is built to meet Federal EPA emissions requirements and is not legal for sale or installation in California, Colorado or New York.
Specifications
| Type | OEM Grade Federal/EPA compliant direct-fit catalytic converter |
| Position | Primary |
| Inlet Diameter | 2.25 in |
| Outlet Diameter | 2 in |
| Overall Length | 23.25 in |
| Substrate | Ceramic |
| Material | 16 gauge 409 stainless steel, 308 stainless MIG welds |
| Oxygen Sensor Ports | 2 (pre-converter and midbed) |
| Included | Four mounting nuts |
| Emissions | Federal EPA compliant; not legal in California, Colorado or New York |
| Warranty | 5 year limited construction, 25,000 mile limited emissions |
| OEM Replacement | 212 490 48 47 |
| Quantity | 1 (sold individually) |
| Part Number | 52997 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2017 | Mercedes-Benz | E400 | 4Matic |
| 2015-2017 | Mercedes-Benz | E400 | Base |
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
