AP Exhaust 641551 Catalytic Converter with Integrated Exhaust Manifold - Front

Direct-Fit Manifold Catalytic Converter

AP Exhaust 641551 is a Federal / EPA direct-fit manifold catalytic converter built for exact OE dimensions and fitment. It combines the exhaust manifold and catalytic converter in one assembly for select Mitsubishi Outlander and Mitsubishi Outlander Sport applications.

AP Exhaust uses a ceramic substrate and advanced manufacturing methods to support consistent converter construction and efficient emissions control. This part is built for direct replacement on the listed vehicles, including 2014-2018 Mitsubishi Outlander and 2014-2015 Mitsubishi Outlander Sport.

Key Features

• Part number 641551
• Part type: catalytic converter with integrated exhaust manifold
• Federal / EPA direct-fit manifold design
• Ceramic substrate material
• 10-bolt welded inlet connection
• 2-bolt welded outlet connection
• 1 O2 sensor port
• Inlet gasket and outlet gasket listed in the application data
• Inlet hardware and outlet hardware listed in the application data

Fitment Details

Fits 2014-2018 Mitsubishi Outlander, N/A. Fits 2014-2015 Mitsubishi Outlander Sport, front.

This part cross-references Monroe Shocks & Struts (e.g., 1555A757) for the same application.

What It Helps Address

• Failed catalytic converter efficiency codes
• Exhaust leaks at the manifold-to-pipe connection
• Cracked or damaged integrated manifold assembly
• Check engine light concerns related to emissions performance
• Fitment issues from a non-OE-style replacement part

Installation Notes

Verify the vehicle’s emissions configuration before ordering. This Federal / EPA direct-fit manifold is listed for Mitsubishi Outlander and Mitsubishi Outlander Sport applications, with notes stating it is not for sale or use on vehicles licensed in CA, CO, ME, or NY. Confirm O2 sensor port location, flange style, and manifold orientation against the original part before installation.

Quality Assurance

AP Exhaust builds this converter to OE dimensions using automated production equipment and spinner welding processes for consistent fitment and assembly quality. The ARISTO substrate chemistry is used to support efficient converter loading and emissions performance.