Magnaflow Converter Direct Fit 5.4L CARB 02-03 Ford F150

Magnaflow 02-03 Ford F-150 5.4L Direct Fit Converter restores proper emissions control and keeps the check engine light off while providing a durable, high-flow solution for the 2002–2003 F-150 5.4L.

This California Grade CARB-compliant direct-fit catalytic converter (part number 4583090) is engineered for reliability and straightforward installation on applicable Ford F-150 applications.

• California Grade CARB Compliant (4583090) — Ensures the converter meets strict emissions standards so the vehicle maintains legal operation and emissions performance in regulated regions.
• Direct-fit design — Eliminates the need for custom fabrication or adapter piping, reducing installation time and preserving factory mounting points for consistent fitment and exhaust alignment.
• Free-flowing mandrel-bent tubing — Provides a smooth internal flow path that reduces exhaust restriction compared with crush-bent bends; this supports a high-flow exhaust characteristic without altering emissions function.
• Highly corrosion-resistant stainless steel construction — Extends service life in corrosive environments and reduces the likelihood of premature failure from rust or oxidation.
• Spun body converter — Offers robust structural integrity and a compact form factor that simplifies replacement and maintains OEM-like packaging under the vehicle.

Designed by Magnaflow, a recognized OEM and performance exhaust supplier, this converter balances emissions compliance with performance-oriented flow characteristics. The combination of mandrel-bent tubing and stainless steel construction delivers dependable operation while minimizing pressure drop through the exhaust path.

Key application notes: Intended as a direct replacement unit for compatible 2002–2003 Ford F-150 5.4L installations; part number 4583090 identifies the specific California Grade CARB-compliant configuration.