AP Exhaust 770370 Catalytic Converter

Direct-Fit Catalytic Converter for Honda Civic

AP Exhaust 770370 is a direct-fit catalytic converter for select California-emissions Honda Civic applications. It is built to OE dimensions for proper fitment and uses AP Emissions Technologies’ ARISTO substrate chemistry to support efficient catalyst loading and consistent converter performance.

Key Features

• Direct-fit replacement catalytic converter
• Built to exact OE dimensions for the listed Honda Civic applications
• ARISTO substrate chemistry for efficient catalyst loading
• Manufactured with automated workstations, spinner welding equipment, and high-speed production lines
• California emissions compliant for the listed vehicles
• Part number 770370 for ordering and catalog lookup

Fitment Details

• Fits 2011 Honda Civic, N/A — Direct Fit - California; BHNXV02.0TA9; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-10
• Fits 2010 Honda Civic, N/A — Direct Fit - California; AHNXV02.0EA9; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-10
• Fits 2009 Honda Civic, N/A — Direct Fit - California; 9HNXV02.0VA9; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-10
• Fits 2008 Honda Civic, N/A — Direct Fit - California; 8HNXV02.4FKC; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-10
• Fits 2007 Honda Civic, N/A — Direct Fit - California; 7HNXV02.4HKR; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-10
• Fits 2007 Honda Civic, N/A — Direct Fit - California; 7HNXV02.4HKC; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-10
• Fits 2006 Honda Civic, N/A — Direct Fit - California; EHNXV02.4FKC; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-10
• Fits 2006 Honda Civic, N/A — Direct Fit - California; 6HNXV02.4FKC; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-10

What This Part Helps Address

• Failed emissions test results on a California-spec Honda Civic
• Check engine light concerns related to catalyst efficiency
• Restricted exhaust flow caused by a worn or damaged converter
• Replacement needs for a direct-fit Honda Civic catalytic converter

Installation Notes

Verify the emissions label and EO requirements before installation. This catalytic converter is listed for California applications only and should be matched to the exact year and emissions configuration shown above. Confirm the existing converter part number and vehicle application before ordering AP Exhaust 770370.

Quality Assurance

AP Exhaust uses advanced manufacturing methods and OE-dimension construction to support consistent fitment and production accuracy. The brand’s ARISTO substrate chemistry is used to improve catalyst loading efficiency while maintaining competitive manufacturing control for the listed Honda Civic applications.