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Walker 50578 Catalytic Converter
| Brand | Walker 50578 |
|---|---|
| Mounting Hardware Included | No |
| Universal Or Specific Fit | Specific |
| Grade Type | Regular |
| Body Shape | Round |
| Inlet Inside Diameter | 2.75 |
| Body Height | 4 |
| Body Length | 8 |
| Body Width | 4 |
| Body Material | Stainless steel |
| California Air Resources Board (CARB) Certified | No |
| Overall Length | 55 |
| Air Tube | No |
| Air Tube Count | No |
| Converter Quantity | 2 |
| Inlet 1 Inside Diameter | 2.75 |
| Inlet 1 Type | 2 bolt loose flange with spherical flare |
| Inlet 2 Inside Diameter | 2.75 |
| Inlet 2 Type | 2 bolt loose flange with spherical flare |
| Inlet Quantity | 2 |
| Inlet Type | 2 bolt loose flange with spherical flare |
| Outlet 1 Outside Diameter | 2.25 |
| Outlet 1 Type | Pipe connection |
| Outlet 2 Outside Diameter | 2.25 |
| Outlet 2 Type | Pipe connection |
| Outlet Outside Diameter | 2.25 |
| Outlet Quantity | 2 |
| Outlet Type | Pipe connection |
| Oxygen Sensor Location | Pre catalyst and midbed |
| Substrate Material | Ceramic |
| Product line | EPA |
| Fits | Ford · 4 vehicles |
EPA-compliant design. Built for specific-fit emissions replacement on OBDII vehicles.
Stainless steel body. Corrosion-resistant construction with a ceramic substrate.
Direct-fit layout. Uses flange and pipe connections for a precise exhaust match.
Cross-references 49977 and 642821 for the same application. See all 2.
Overview
Walker EPA 50578 is a direct-fit catalytic converter built for specific applications and engineered to meet EPA standards. It is made for OBDII vehicles and uses a stainless steel body with a ceramic substrate for dependable exhaust treatment.
Fits 2011-2014 Ford Mustang, N/A. This Walker EPA 50578 application is listed for federal and California emission models, with state-use restrictions noted in the fitment data.
Key Features
- Direct-fit catalytic converter for specific applications
- EPA-compliant design for OBDII vehicles
- Stainless steel body with ceramic substrate
- Round body shape with dual inlet and outlet connections
- Pre-catalyst and midbed oxygen sensor locations
Detailed Description
The Walker EPA 50578 catalytic converter is built as a specific-fit replacement for the 2011-2014 Ford Mustang. Its direct-fit layout uses 2-bolt loose flange connections with spherical flare inlets and pipe connection outlets, helping match the original exhaust configuration more closely. The stainless steel body and ceramic substrate support exhaust flow and emissions control in a durable construction.
This part cross-references Walker 49977 and 642821 for the same application. The EPA line from Walker focuses on compliant replacement converters for import and domestic OBDII vehicles, and this unit follows that approach with a fitment-specific design. The part number 50578 is also useful when verifying the correct converter for the Mustang application.
What It Is Used For
- Replacing a worn or failed catalytic converter
- Addressing emissions-related fault codes tied to converter efficiency
- Restoring exhaust flow through a damaged converter assembly
- Correcting leaks at flange or pipe connection points
- Matching the original exhaust layout on a specific-fit application
Installation Notes
Fitment notes call for an exhaust gasket, and the converter is listed with pre-catalyst and midbed oxygen sensor locations. Verify federal or state emissions requirements before installation, since the fitment data notes restrictions for California and other CARB-compliant states. Confirm the inlet and outlet dimensions, flange style, and application details before ordering.
Quality Assurance
Walker EPA products are positioned as EPA-standard replacement converters for specific OBDII applications. Part number 50578 is built to match the listed fitment and emissions configuration for the 2011-2014 Ford Mustang.
| Year | Make | Model | Submodel | Liters | Cylinders | Notes |
|---|---|---|---|---|---|---|
| 2014 | Ford | Mustang | Base | 3.7L | V6 | Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA |
| 2013 | Ford | Mustang | Base | 3.7L | V6 | Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA |
| 2012 | Ford | Mustang | Base | 3.7L | V6 | Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA |
| 2011 | Ford | Mustang | Base | 3.7L | V6 | Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Ultra Direct Fit Type; EPA |
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