MagnaFlow 49986 is an OEM Grade Federal/EPA compliant direct-fit catalytic converter that replaces the front exhaust pipe and converter assembly sitting downstream of the 1MZ-FE manifold converters. Two 2.0 in flanged inlets collect both cylinder banks into a single 2.375 in flanged outlet across 36.75 in overall length, around a 6.625 in ceramic substrate converter body. It carries no oxygen sensor ports, because the sensors stay at the manifold converters upstream. Tubing is 16 gauge 409 stainless steel with 308 stainless MIG welds and 410 stainless barbed hangers, and two flat ring gaskets plus a donut gasket are supplied. This is a Federal/EPA 49-state part and is not CARB certified.
Specifications
| Type | OEM Grade Federal/EPA compliant direct-fit catalytic converter |
| Position | Front, secondary (downstream of the manifold converters); dual-inlet assembly collecting both banks |
| Material | 16 gauge 409 stainless steel tubing, 308 stainless MIG welds, 410 stainless barbed hangers |
| Substrate | Ceramic |
| Inlet | 2.0 in flange x 2 |
| Outlet | 2.375 in flange |
| Overall Length | 36.75 in |
| Converter Body | 6.625 in L x 5 in diameter, round spun body |
| Oxygen Sensor Ports | 0 |
| Air Tube | None; not air tube adaptable |
| Included Hardware | (2) flat ring gaskets, (1) donut gasket |
| Emissions Compliance | Federal/EPA 49-state. Not CARB certified; not legal for sale or installation in California, Colorado or New York |
| Quantity | 1 |
| Part Number | 49986 |
| OEM Replacement | 17410-0A220, 17410-0A310 |
| Warranty | 5 years / 50,000 miles construction; 25,000 miles emissions |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2000-2004 | Toyota | Avalon | XL |
| 2000-2004 | Toyota | Avalon | XLS |
| 2001-2003 | Toyota | Sienna | CE |
| 2001-2003 | Toyota | Sienna | LE |
| 2001-2003 | Toyota | Sienna | XLE |
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
