Eastern Convertors 50591 Catalytic Converter - Front

Direct-Fit Catalytic Converter for GM Applications

Eastern Convertors 50591 is a DIRECT FIT catalytic converter built for specific Buick and Chevrolet front exhaust applications. It is engineered to match OE dimensions and fitment, with a Federal / EPA direct-fit undercar design for straightforward replacement on the listed vehicles.

The Eastern Convertors DIRECT FIT line focuses on exact-fit replacement parts for repair work where factory-style dimensions and emissions compliance matter. Part number 50591 is built with advanced manufacturing methods and a proprietary NANO substrate chemistry to support efficient converter loading and consistent performance.

Key Features

• Brand: Eastern Convertors
• Brand line: DIRECT FIT
• Part number: 50591
• Catalyst type: ECO GM
• Federal / EPA direct-fit undercar converter
• Overall length: 12.5 in.
• Inlet type: 3-bolt welded
• Outlet type: 2-bolt welded
• O2 sensor ports: none
• Inlet gasket quantity: 1
• Outlet gasket quantity: 1
• Outlet hardware: yes

Detailed Description

Eastern Convertors 50591 is a direct-fit catalytic converter for front exhaust placement on select Buick Envision and Chevrolet Impala, Malibu, and Malibu Limited models. It is built to OE dimensions for proper alignment in the exhaust system and uses a Federal / EPA direct-fit undercar configuration. The ECO GM catalyst type and NANO substrate chemistry are used to support efficient converter loading in a compact replacement design.

Compatible With: Fits 2017-2020 Buick Envision, front; Fits 2017-2019 Chevrolet Impala, front; Fits 2014-2016 Chevrolet Impala, front; Fits 2016 Chevrolet Malibu Limited, front; Fits 2013-2015 Chevrolet Malibu, front. This part number, 50591, is a direct replacement choice for front catalytic converter service on these GM applications.

This part cross-references Walker (e.g., 16495, 16500) for the same application.

What It Helps Address

• Failed catalytic converter efficiency codes
• Exhaust restriction from a worn or damaged converter
• Emissions test failure related to converter performance
• Rattling or deteriorated internal catalyst material
• Leak-prone replacement needs at the front exhaust connection

Installation Notes and Tips

Verify the vehicle’s emissions configuration before ordering. This converter is listed for Federal and California emissions on the 2017-2020 Buick Envision, and for specific Chevrolet Impala, Malibu Limited, and Malibu applications with the noted emissions exclusions. The unit uses welded inlet and outlet connections, includes one inlet gasket and one outlet gasket, and has no O2 sensor ports.

Confirm front-position fitment, flange style, and emissions requirements against the vehicle before installation. Part number 50591 is intended for the exact applications shown in the fitment data.

Quality Assurance

Eastern Convertors uses automated workstations, spinner welding equipment, and high-speed production lines to build converters to OE dimensions and fitment standards. The DIRECT FIT line is manufactured with a focus on consistent construction and efficient production, while the NANO substrate chemistry supports efficient catalyst loading for the listed applications.