AP Exhaust 644009 Catalytic Converter - Rear

AP Exhaust Catalytic Converter for Mini Cooper

The AP Exhaust 644009 catalytic converter is designed specifically for Mini Cooper models, providing a direct-fit solution that meets Federal and EPA standards. Constructed with durable stainless steel and a ceramic substrate, this catalytic converter ensures reliable performance and emissions control.

Key Features of AP Exhaust 644009 Catalytic Converter

• Body material made from corrosion-resistant stainless steel
• Federal / EPA direct-fit design for Mini Cooper vehicles
• Overall length of 43.5 inches for precise fitment
• 3.11-inch flare inlet and 2.05-inch outer diameter pipe outlet
• Ceramic substrate for effective catalytic conversion
• Outlet hardware included; no inlet gasket or hardware required
• No O2 sensor ports, compatible with factory sensor locations

Detailed Product Description

This AP Exhaust catalytic converter (part number 644009) is engineered to replace the factory catalytic converter on Mini Cooper models without modification. The stainless steel body offers resistance to rust and corrosion, extending the life of the exhaust component. The ceramic substrate inside efficiently reduces harmful emissions, helping your vehicle comply with environmental regulations. The inlet features a 3.11-inch flare connection, while the outlet uses a 2.05-inch outer diameter pipe, ensuring a secure and leak-free fit. This direct-fit catalytic converter does not require an inlet gasket or hardware, simplifying installation, though outlet hardware is included for proper attachment.

Common Applications and Issues Addressed

• Replacement for damaged or clogged catalytic converters on Mini Cooper vehicles
• Restores proper emissions control to pass state and federal inspections
• Eliminates exhaust leaks caused by deteriorated factory converters
• Improves exhaust flow and engine performance by restoring converter function
• Helps reduce harmful emissions and maintain environmental compliance

Installation Notes and Tips

• Compatible with Mini Cooper models requiring a 43.5-inch overall length catalytic converter
• No inlet gasket or hardware needed; outlet hardware is included for secure fitment
• Ensure factory O2 sensors remain in place as this converter has no sensor ports
• Professional installation is recommended to ensure proper sealing and alignment

Quality Assurance and Warranty

The AP Exhaust 644009 catalytic converter is manufactured to meet Federal and EPA standards for emissions control. Constructed with high-quality stainless steel and a ceramic substrate, it is built for durability and long-term performance. Warranty information is available from the manufacturer to cover defects in materials and workmanship.