MagnaFlow's California Grade converter is a CARB compliant replacement for the driver side converter on the 4.6L V8 and bolts into the factory location without cutting or welding. A 2.5 in flange inlet feeds a 2.5 in pipe connection outlet across a 31.75 in assembly with an 11 in round spun bed, and the 16 gauge 409 stainless steel tubing is joined with 308 stainless steel MIG welds over a ceramic substrate. Two ports are provided for the pre converter and midbed oxygen sensors, and inlet mounting hardware is included. CARB Executive Order D-193-193 makes it legal for installation in all 50 states.
Specifications
| Type | California Grade CARB compliant direct-fit catalytic converter |
| Position | Left (driver side) |
| Material | 16 gauge 409 stainless steel tubing, 308 stainless steel MIG welds |
| Body | Spun stainless, round, 11 in long, 4 in high, 4 in wide |
| Substrate | Ceramic |
| Overall Length | 31.75 in |
| Inlet | 2.5 in inside diameter, flange, quantity 1 |
| Outlet | 2.5 in inside diameter, pipe connection, quantity 1 |
| Oxygen Sensor Ports | 2 (pre converter and midbed) |
| Emissions | CARB compliant, Executive Order D-193-193; New York certified; legal in all 50 states |
| Engine Family Numbers | 7FMXT04.63AB (2007), 8FMXT04.63AB (2008) |
| Included Hardware | Inlet mounting hardware |
| Quantity | 1 |
| Part Number | 5451409 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008 | Ford | F-150 | FX2 |
| 2007-2008 | Ford | F-150 | STX |
| 2008 | Ford | F-150 | THE 60TH ANNIVERSARY EDITION |
| 2007-2008 | Ford | F-150 | XL |
| 2007-2008 | Ford | F-150 | XLT |
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
