MagnaFlow
Direct-Fit OEM GRADE Federal (Exc.CA)

MagnaFlow 49231 Catalytic Converter

Brand MagnaFlow 49231
Mounting Hardware Included Yes
Universal Or Specific Fit Specific
Grade Type Regular
Tube Material Stainless steel
Inlet Type Bolt-on
Outlet Type Bolt-on
Heat Shield Attached No
Body Material Stainless steel
Substrate Material Ceramic
Inlet Gasket Included No
Inlet Mounting Hardware Included Yes
Outlet Gasket Included No
Overall Length 18.375
Air Tube Count 0
Sensor Port Count 2
Air Tube Adaptable No
Clamp Included Yes
Converter Quantity 1
Finish Stainless steel
Gasket Included Yes
Hangers Included No
Heat Shield Material None
Main Piping Diameter 2.25
Oxygen Sensor Location Pre converter and midbed
Series Oem grade
Subtitle Federal / epa compliant
Title Oem grade direct-fit
Type Direct-fit
Product line Direct-Fit OEM GRADE Federal (Exc.CA)
Fits Ford · 7 vehicles

Direct-fit OEM grade. Installs without cutting or welding for a straightforward replacement.

Stainless steel construction. Resists corrosion for long-lasting exhaust durability.

Federal/EPA compliant. Meets emissions requirements for legal road use.

Cross-references YS4Z-5E212-BA and YS4Z-5E212-HA for the same application. See all 2.

$465.21Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $465.21
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Direct-Fit Catalytic Converter for Ford Focus

MagnaFlow 49231 is an OEM Grade direct-fit catalytic converter for the 2000-2004 Ford Focus. It is built for Federal/EPA-compliant applications and is designed to replace the original converter without cutting or welding.

The MagnaFlow OEM Grade Direct-Fit Federal (Exc.CA) line focuses on OE-style fitment and emissions compliance for specific vehicles. For Ford Focus owners, that means a replacement converter shaped to match the factory layout and mounting points.

  • Direct-fit design for the 2000-2004 Ford Focus
  • Federal/EPA compliant for OBDII federally registered vehicles
  • Stainless steel body and tubing for corrosion resistance
  • Ceramic substrate
  • Bolt-on inlet and outlet for straightforward installation
  • Includes gasket and mounting hardware
  • 2.25 in. main piping diameter
  • 2 sensor ports with pre-converter and midbed oxygen sensor locations
  • Interchanges with OE part YS4Z-5E212-BA

OE-Style Replacement Details

Part number 49231 uses a spun-body, low-mass design with a single laser fusion weld to help reduce leak points and improve thermal efficiency. MagnaFlow also uses 3D scanning during development to match factory dimensions, which supports proper fitment on the Ford Focus exhaust system. This part cross-references OE numbers YS4Z-5E212-BA and YS4Z-5E212-HA for the same application.

What This Converter Helps Address

  • Check engine light caused by a failing catalytic converter
  • Emissions test failure from a worn or inefficient converter
  • Exhaust leaks at the converter body or mounting points
  • Corrosion-related damage to the original factory converter
  • Fitment issues when replacing a damaged OE unit on a Ford Focus

Installation Notes

Compatible With 2000-2004 Ford Focus, N/A. Use the correct tools and follow factory service procedures for installation. The bolt-on design eliminates the need for cutting or welding, and the included gasket and hardware help reduce the chance of a leaking seal. Verify sensor locations and OE interchange before installation.

Quality Assurance

MagnaFlow designs this catalytic converter to meet or exceed Federal emissions requirements set by the EPA for applicable OBDII vehicles. The stainless steel construction, OE-style body design, and direct-fit engineering are intended to support reliable fitment and emissions performance on the Ford Focus.

This part fits 7 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelTransmissionLitersCylindersPositionNotes
2004FordFocusAutomatic2.0LL4N/ADirect-Fit OEM GRADE Federal (Exc.CA)
2003FordFocusAutomatic2.0LL4N/ADirect-Fit OEM GRADE Federal (Exc.CA)
2002FordFocusAutomatic2.0LL4N/ADirect-Fit OEM GRADE Federal (Exc.CA)
2001FordFocusAutomatic2.0LL4N/ADirect-Fit OEM GRADE Federal (Exc.CA)
2000FordFocusSEAutomatic2.0LL4N/ADirect-Fit OEM GRADE Federal (Exc.CA)
2000FordFocusZTSAutomatic2.0LL4N/ADirect-Fit OEM GRADE Federal (Exc.CA)
2000FordFocusZX3Automatic2.0LL4N/ADirect-Fit OEM GRADE Federal (Exc.CA)
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
YS4Z-5E212-BAYS4Z-5E212-HA