AP Exhaust 771442 Catalytic Converter

CARB-Compliant Direct-Fit Catalytic Converter

AP Exhaust 771442 is a CARB compliant direct-fit catalytic converter built for California emissions applications. It uses a stainless steel body, a ceramic substrate, and OE-style dimensions to support proper fitment on select Chevrolet Cobalt, Chevrolet HHR, and Pontiac G5 models.

The AP Exhaust 8GMXV02.4025 product line is engineered with proprietary substrate chemistry and modern manufacturing methods to deliver consistent converter construction and accurate fitment. For buyers searching for a direct-fit catalytic converter for a 2008 Chevrolet Cobalt or a California emissions replacement for a 2008 Pontiac G5, this part number 771442 is built to match the listed application.

Key Features

• CARB compliant direct-fit catalytic converter
• Stainless steel body for corrosion resistance
• Ceramic substrate material
• 2 O2 sensor ports
• 3-bolt welded flange inlet and 2-bolt welded flange outlet
• Inlet gasket and outlet gasket included in the listed configuration
• Built to OE dimensions and fitment targets
• Executive Order D-798-9

Application Details

Compatible With California emissions applications for 2008-2011 Chevrolet Cobalt, 2008-2011 Chevrolet HHR, and 2008-2009 Pontiac G5 in the listed direct-fit configurations. This AP Exhaust catalytic converter 771442 is identified for the exact vehicle notes shown in the fitment data, including California compliance references and OE-style replacement numbers.

What This Part Helps Address

• Failed catalytic converter efficiency codes
• Emissions test failure related to converter performance
• Rattling or damaged converter substrate
• Exhaust leaks at the converter flange connections
• Check engine light concerns tied to catalyst monitoring

Installation Notes

Verify the vehicle’s emissions certification and match the listed California application before installation. This converter uses welded flange connections and includes 2 O2 sensor ports, so sensor placement and exhaust alignment should be checked against the original system. Confirm gasket surfaces, flange orientation, and overall length before final tightening.

Fits 2011 Chevrolet HHR, N/A. Fits 2010 Chevrolet Cobalt, N/A. Fits 2010 Chevrolet HHR, N/A. Fits 2009 Chevrolet Cobalt, N/A. Fits 2009 Chevrolet HHR, N/A. Fits 2009 Pontiac G5, N/A. Fits 2008 Chevrolet Cobalt, N/A. Fits 2008 Chevrolet HHR, N/A. Fits 2008 Pontiac G5, N/A.

Quality Assurance

AP Exhaust states that this converter line is produced with automated workstations, spinner welding equipment, and high-speed production lines to maintain OE dimensions and consistent build quality. The listed Executive Order D-798-9 confirms California emissions approval for the specified applications.