Walker 16888 Catalytic Converter - Rear

Walker EPA Direct-Fit Converter

Walker Ultra Direct-Fit Catalytic Converter 16888 is a specific-fit exhaust replacement for select Mazda CX-5 applications. It is built to meet EPA standards and uses a stainless steel body with a ceramic substrate for direct-fit service on OBDII vehicles.

Key Features

• Specific-fit catalytic converter for targeted exhaust replacement
• EPA-compliant design for federal emissions applications
• Stainless steel body with a ceramic substrate
• Round body shape with welded flange inlet and pipe outlet connection
• Walker Ultra Direct-Fit construction for import and domestic OBDII vehicles

Detailed Description

This Walker catalytic converter, part number 16888, is engineered for 2014-2016 Mazda CX-5 rear applications listed in the fitment data. The unit uses a 2-bolt welded flange inlet, a 2.375-inch outlet connection, and a round stainless steel body to match the specified exhaust layout. The ceramic substrate supports emissions control performance while the direct-fit format helps simplify replacement on the correct Mazda CX-5 exhaust configuration. This part cross-references AP Exhaust 644040 for the same application.

Common Issues It Can Address

• Failed catalytic converter efficiency codes
• Exhaust restriction from a deteriorated converter core
• Emissions test failure related to converter performance
• Exhaust leaks at the converter connection points
• Replacement needs after corrosion or internal substrate damage

Installation Notes and Tips

Fits 2014-2016 Mazda CX-5, rear. Review the fitment notes before installation: this application requires 57004 resonator and additional part 31532 to complete installation. The listing also notes federal and California emissions coverage details, so verify local regulations before purchase. Confirm the inlet flange style, outlet diameter, and exhaust routing against the vehicle before beginning work.

Quality Assurance

Walker Ultra Direct-Fit Catalytic Converters are positioned for EPA-compliant replacement service on import and domestic OBDII vehicles. Part number 16888 is built to the listed specifications for the stated application.