High Flow Catalytic Converter for 2003-2007 Accord 2.4L

High flow catalytic converter replacement restores smoother exhaust flow and reliable emissions control for 2003–2007 Honda Accord 2.4L L4. Built with a stainless steel shell and ceramic honeycomb substrate, it’s designed to reduce restriction while supporting OBD III compliance. Direct-fit, flange-to-flange construction helps simplify installation, and an integrated O2 sensor port keeps your setup consistent with factory routing. Not legal for use in California (non-CARB).

• Fits 2003–2007 Honda Accord DX/EX/LX 2.4L L4 for direct replacement


• Delivers high-flow performance to help reduce exhaust restriction and improve response


• Includes flange-to-flange design plus gaskets and hardware for swap-out installs


• Supports OBD III compliance and helps reduce risk of MIL-related issues


• Adds O2 sensor port and honeycomb catalyst structure for effective exhaust cleaning

Replace a clogged or failing converter with a direct-fit solution engineered for durability and consistent exhaust performance. The stainless steel body is built to handle high exhaust temperatures, while the ceramic substrate and honeycomb structure support efficient conversion of common exhaust pollutants. Confirm inlet/outlet diameters before ordering—this unit is sized for vehicles using a 2.2 in inlet pipe diameter. Professional installation is recommended to ensure proper sealing, alignment, and sensor fitment. Grab yours today and get your Accord back to steady, compliant driving (except restricted states).

• Vehicle fitment: 2003–2007 Honda Accord DX/EX/LX 2.4L L4


• Body material: Stainless steel


• Substrate material: Ceramic; honeycomb structure


• Emissions standard: OBD III compliant; non-CARB (restricted in California)


• Inlet inner diameter: 2.2 in / 5.5 cm


• Outlet inner diameter: 1.9 in / 4.7 cm


• Cell count: 400 cells


• O2 sensor port: Yes


• Product size (L x W): 19.1 x 5.9 in / 48.5 x 15 cm


• Product weight: 7.5 lb / 3.4 kg