Walker 16575 Catalytic Converter

Walker EPA Direct-Fit Catalytic Converter

Walker EPA Part Number 16575 is a direct-fit rear catalytic converter built for specific applications and engineered for OBDII vehicles from 1996 and newer. It is designed for the 2008-2015 Scion xB and uses a stainless steel body with a ceramic substrate for EPA-compliant replacement performance.

Key Features

• Direct-fit design for specific vehicle applications
• Rear converter position
• Stainless steel body construction
• Ceramic substrate material
• 2-bolt welded flange inlet and outlet connections
• Overall length: 41.75 in.
• Body dimensions: 4.125 in. height, 8 in. length, 4.125 in. width
• EPA-compliant replacement for federal emissions applications

Application Details

This Walker EPA catalytic converter is built for the 2008-2015 Scion xB, rear position, with direct-fit installation geometry that matches the original exhaust layout. It is a practical replacement for drivers searching for a 2008 Scion xB catalytic converter, a 2010-2015 Scion xB rear catalytic converter, or a Walker 16575 exhaust replacement for EPA Federal Emission Equipped Vehicles.

This part cross-references part number 49189 for the same application.

What It Helps Address

• Check engine light concerns related to catalyst efficiency
• Failed emissions inspection caused by a worn converter
• Restricted exhaust flow from a deteriorated catalyst
• Exhaust leaks at the converter connection points
• Replacement needs after corrosion or internal substrate breakdown

Installation Notes

Fitment is specific, so confirm the vehicle is a 2008-2015 Scion xB before ordering. The inlet and outlet use 2-bolt welded flange connections, and an exhaust gasket is recommended during installation. Additional parts may be needed to complete the job, including 31374 and 31357. There is no oxygen sensor port location on this converter.

Quality Assurance

Walker EPA Ultra Direct-Fit Catalytic Converters are built to meet EPA standards for approved federal emissions applications. This part is not CARB certified and is not legal for sale or use in California and other CARB-compliant states; New York and Maine allow EPA Federal Emission Equipped Vehicles only, subject to state regulations.