Catalytic Converter for Honda Accord (2004-2007) 2.4L

Direct-Fit Catalytic Converter for 2004-2007 Honda Accord

Replaces clogged, degraded, or failing factory center catalytic converters to restore proper exhaust velocity, clear diagnostic trouble codes (such as P0420), and maintain EPA emissions compliance.

The Stock Accord Catalytic Deterioration

With high mileage and countless thermal cycles, the factory ceramic washcoat inside the stock 7th-gen Accord catalytic converter breaks down, leading to substrate clogging, reduced exhaust scavenging, and diminished engine efficiency. Elevated exhaust gas temperatures (EGTs) accelerate matrix degradation, triggering persistent check engine lights and creating excessive backpressure against the K24 cylinder head.

The Engineering Solution

This replacement assembly utilizes a high-grade stainless steel washcoat body paired with mandrel-bent aluminized steel tubing to ensure smooth internal flow and high resistance to road salt corrosion. Engineered with OE-pattern laser-cut flanges and a precision-located O2 sensor bung, it installs directly to the factory manifold and mid-pipe without cutting or custom fabrication, restoring factory flow dynamics and emissions efficiency.

Technical Specifications

Compatibility

• 2004 Honda Accord 2.4L 4-Cylinder (DX, LX, EX)
• 2005 Honda Accord 2.4L 4-Cylinder (DX, LX, EX, SE)
• 2006 Honda Accord 2.4L 4-Cylinder (VP, LX, EX, Special Edition)
• 2007 Honda Accord 2.4L 4-Cylinder (VP, LX, EX, Special Edition)
• Note: EPA 49-state legal. Not legal for sale or use in California, New York, or Maine.

The Honda Reliability Standard

Engineered to match strict JDM factory tolerances, this unit eliminates exhaust leaks and secondary oxygen sensor faults while maintaining the smooth throttle response and balanced power delivery expected from Honda's K-series powertrain.