AP Exhaust 772778 Catalytic Converter - Rear

Direct-Fit Catalytic Converter for Nissan Altima

AP Exhaust 772778 is a CARB-compliant direct-fit catalytic converter for rear applications on select Nissan Altima models. Built with a stainless steel body, ceramic substrate, and OE-matched dimensions, it is made for clean fitment and emissions compliance on California applications.

The AP Exhaust 7NSXV02.5G5A product line focuses on exact-fit replacement converters with efficient substrate loading and modern manufacturing controls. That approach helps maintain consistent converter performance while keeping the part aligned with OE-style dimensions for easier installation on the Nissan Altima rear exhaust position.

• CARB compliant direct-fit catalytic converter
• Stainless steel body with ceramic substrate
• Rear position fitment for select Nissan Altima models
• 2 O2 sensor ports
• Inlet gasket and outlet gasket included
• 3-bolt welded flange with gasket stub inlet
• 2-bolt welded flange outlet
• California emissions EO: D-798-9

Fitment Details

• Fits 2016 Nissan Altima, rear — Direct Fit - California; GNSXV02.5G5A; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-9
• Fits 2015 Nissan Altima, rear — Direct Fit - California; FNSXV02.5G5A; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-9
• Fits 2014 Nissan Altima, rear — Direct Fit - California; ENSXV02.5G5A; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-9
• Fits 2013 Nissan Altima, rear — Direct Fit - California; DNSXJ02.5G5B; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-9
• Fits 2013 Nissan Altima, rear — Direct Fit - California; DNSXV02.5G5A; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-9
• Fits 2012 Nissan Altima, rear — Direct Fit - California; CNSXJ02.5G5B; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-9
• Fits 2011 Nissan Altima, rear — Direct Fit - California; BNSXJ02.5G5A; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-9
• Fits 2010 Nissan Altima, rear — Direct Fit - California; ANSXJ02.5G5A; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-9
• Fits 2009 Nissan Altima, rear — Direct Fit - California; 9NSXJ02.5G5A; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-9
• Fits 2009 Nissan Altima, rear — Direct Fit - California; 9NSXJ02.5G5A; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-9
• Fits 2008 Nissan Altima, rear — Direct Fit - California; 8NSXV02.5G5A; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-9
• Fits 2008 Nissan Altima, rear — Direct Fit - California; 8NSXV02.5G5A; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-9
• Fits 2007 Nissan Altima, rear — Direct Fit - California; 7NSXV02.5G5A; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number: D-798-9

What This Converter Helps Address

• Failed catalytic converter efficiency codes
• Emissions test failures on California applications
• Rattling or damaged converter substrate
• Exhaust leaks at the converter flange connections
• Check engine light concerns related to rear converter performance

Installation Notes

Verify the rear position and California emissions application before ordering. Confirm the inlet and outlet flange style, O2 sensor port count, and overall length of 48.5 inches against the original converter on the vehicle. This part cross-references AP Exhaust 7NSXV02.5G5A for the same application.

Quality Assurance

AP Exhaust uses automated workstations, spinner welding equipment, and high-speed production lines to build converters to exact OE dimensions and fitment. The converter is certified under Executive Order D-798-9 for California emissions requirements.