MagnaFlow 452003 is a California Grade CARB compliant direct-fit manifold catalytic converter for the rear cylinder bank of the transverse 2.5L Duratec V6, replacing the close-coupled primary converter that bolts to the exhaust manifold. The one-piece spun body runs 21.125 in overall around a 6 in ceramic substrate converter body, with a flanged inlet, a flanged outlet and a single oxygen sensor port. Tubing is 16 gauge 409 stainless steel joined by 308 stainless MIG welds, left uncoated, and a flange gasket ships in the box. CARB Executive Order D-193-180 makes it legal for sale and installation in all 50 states, including California and other CARB restricted states, for the listed vehicles.
| Type | California Grade CARB compliant direct-fit manifold catalytic converter |
| Position | Rear cylinder bank, primary (close-coupled manifold converter) |
| Material | 16 gauge 409 stainless steel tubing, 308 stainless MIG welds |
| Finish | Uncoated |
| Substrate | Ceramic |
| Inlet | Flange |
| Outlet | Flange |
| Overall Length | 21.125 in |
| Converter Body | 6 in, one-piece spun body |
| Oxygen Sensor Ports | 1 |
| Included Hardware | (1) flange gasket |
| Emissions Compliance | CARB certified, Executive Order D-193-180. Legal in all 50 states including California, Colorado, New York and Maine |
| Quantity | 1 (one bank) |
| Part Number | 452003 |
| OEM Replacement | GY01-13-450, GY01-13-450A, GY01-13-450B, GY04-13-450, GY04-13-450A, GY04-13-450B, GY04-20-55X, GY04-20-55XA, GY04-20-55XB, GY18-20-55X |
| Pairs With | MagnaFlow 452002 (front bank manifold converter) |
| Warranty | 5 years / 50,000 miles construction; 5 years / 50,000 miles emissions |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1996-1998 | Ford | Contour | GL |
| 1996-2000 | Ford | Contour | LX |
| 1996-2000 | Ford | Contour | SE |
| 1996-1997 | Ford | Contour | Sport |
| 1998-2000 | Ford | Contour | SVT |
| 1999-2002 | Mercury | Cougar | Base |
| 2001 | Mercury | Cougar | S |
| 1999-2002 | Mercury | Cougar | V6 |
| 1996-1997,2000 | Mercury | Mystique | GS |
| 1996-2000 | Mercury | Mystique | LS |
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Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
