Walker 84476 Catalytic Converter - Rear

CARB-Certified Direct-Fit Converter

Walker CalCat 84476 is a direct-fit catalytic converter built for specific Subaru rear exhaust applications. It is CARB certified and engineered for an OE-style fit on 2006-2011 Subaru Legacy, 2008-2010 Subaru Impreza, and 2010 Subaru Forester rear positions.

The Walker CalCat line focuses on replacement converters that are designed, tested, and validated for CARB compliance. This makes 84476 a practical choice for drivers needing a replacement catalytic converter for Subaru Impreza, Subaru Legacy, or Subaru Forester models that require a CARB-compliant rear converter.

Key Features

• Direct-fit catalytic converter for specific Subaru rear applications
• CARB certified for use in California and other CARB-requiring states
• Stainless steel body with ceramic substrate
• Round body design with OE-style flange connections
• 3-bolt welded inlet flange and 2-bolt welded outlet flange
• Overall length: 59.5 in.; body dimensions: 8 in. long, 4.02 in. high, 4.02 in. wide
• No oxygen sensor port location
• Walker CalCat product line for regulated replacement applications

Product Details

Walker 84476 is a specific-fit catalytic converter with a stainless steel housing and ceramic substrate, built to match the original exhaust layout on covered Subaru vehicles. The direct-fit design supports a cleaner replacement path for rear converter service, while the welded flange configuration helps maintain the factory-style exhaust connection. This part number is commonly searched for Subaru Impreza, Subaru Legacy, and Subaru Forester rear catalytic converter replacement needs, especially where CARB compliance is required. This part cross-references Monroe Shocks & Struts (e.g., 5571448) for the same application.

Common Problems This Part Can Address

• Failed emissions inspection due to a worn or inefficient rear catalytic converter
• Check engine light related to catalyst efficiency faults
• Exhaust restriction caused by a deteriorated converter substrate
• Corrosion or leakage at the original converter housing or flanges
• Need for a CARB-compliant replacement on regulated Subaru applications

Installation Notes

• Fits 2011 Subaru Impreza, rear
• Fits 2010 Subaru Forester, rear
• Fits 2010 Subaru Impreza, rear
• Fits 2009 Subaru Impreza, rear
• Fits 2009 Subaru Legacy, rear
• Fits 2008 Subaru Impreza, rear
• Fits 2008 Subaru Legacy, rear
• Fits 2007 Subaru Legacy, rear
• Fits 2006 Subaru Legacy, rear

Exhaust gasket is recommended during installation. Additional parts needed to complete installation are 31383 and 31600. Verify engine family number and emissions requirements before installation, since CARB Executive Order D-182-73 applies to the listed Subaru applications.

Quality Assurance

Walker CalCat converters are designed, tested, and validated to meet CARB standards for the listed applications. Part number 84476 is built for regulated replacement use and follows the OE-style fit expected from a direct-fit catalytic converter.