Walker 16323 Catalytic Converter

Walker EPA Direct-Fit Catalytic Converter

Walker EPA 16323 is a direct-fit catalytic converter built for specific applications and engineered to meet EPA standards. It is designed for 2004-2008 Acura TSX models and uses a stainless steel body with a ceramic substrate for dependable exhaust aftertreatment performance.

The Walker EPA product line focuses on direct-fit replacement converters for import and domestic OBDII vehicles. This Walker 16323 converter follows that approach with OE-style flange connections and midbed oxygen sensor placement for a straightforward replacement on the listed Acura TSX applications.

Key Features

• Direct-fit catalytic converter for specific vehicle applications
• EPA-compliant design for federal emissions applications
• Stainless steel body with round housing
• Ceramic substrate material
• 3-bolt welded flange inlet and outlet connections
• Midbed oxygen sensor location
• Fits 2004-2008 Acura TSX, N/A
• Walker part number 16323

Detailed Description

Walker 16323 is a replacement catalytic converter for the 2004-2008 Acura TSX, built as a specific-fit unit with a 3-bolt welded flange inlet and outlet. The converter uses a stainless steel body, a ceramic substrate, and a round housing profile to match the listed application. It is intended for federal emissions-equipped vehicles and is not CARB certified.

For buyers searching for a 2004 Acura TSX catalytic converter, a 2005-2008 Acura TSX direct-fit exhaust converter, or a Walker EPA 16323 replacement catalytic converter, this part provides an OE-style fitment path for the confirmed application. Additional parts are required to complete installation, and an exhaust gasket is recommended.

This part cross-references AP Exhaust 642039 for the same application.

Common Issues This Part May Address

• Check engine light related to catalytic converter efficiency
• Failed emissions inspection on the listed Acura TSX application
• Restricted exhaust flow from a worn converter
• Rattling or deteriorated internal catalyst material
• Exhaust leaks at the converter connection points

Installation Notes and Tips

Fits 2004-2008 Acura TSX, N/A. Confirm federal emissions configuration before ordering, since this converter is not legal for sale or use in California and other CARB-compliant states. New York and Maine use restrictions apply to EPA Federal Emission Equipped Vehicles only. Review local aftermarket converter regulations before installation.

Walker notes that an exhaust gasket is recommended, and additional parts 31644 and 31369 are needed to complete installation. Verify flange alignment, oxygen sensor location, and overall length before beginning the repair.

Quality Assurance

Walker designs this EPA line for compliance-focused replacement use on OBDII vehicles, with direct-fit construction intended to match the listed application. Part number 16323 is built to the stated fitment and emissions requirements for the covered Acura TSX models.