MagnaFlow 51555 OEM Grade Federal EPA Catalytic Converter Universal 2.25in

The MagnaFlow 51555 is an OEM Grade, Federal/EPA compliant universal catalytic converter designed to keep the check engine light off and restore proper exhaust emissions performance. Built to match the quality and output of your vehicle's original catalytic converter, this unit is engineered for a wide range of OBDII-equipped vehicles running Federal/EPA emission systems.

Constructed from highly corrosion-resistant stainless steel, the 51555 features a clamshell body with a continuous seam weld for superior thermal insulation, while single laser fusion welds minimize the risk of exhaust leaks. A compact, low-mass design promotes greater thermal efficiency, and the integrated OEM-style O2 sensor port ensures proper engine management system interaction.

The ceramic substrate is combined with carefully selected cell density and wall thickness to meet vehicle-specific emissions conversion requirements. This converter undergoes extensive testing and certification to guarantee compliance with Federal EPA emissions standards.

Key Features:

• OEM Grade construction — matches original equipment performance and quality
• Federal/EPA compliant — meets or exceeds EPA emissions requirements for OBDII vehicles
• Universal fit — adaptable to a wide variety of vehicles (cutting and welding required)
• Stainless steel body and tubes — highly resistant to corrosion
• Clamshell body design with continuous seam weld for superior thermal insulation
• Single laser fusion welds to minimize leak risk
• Ceramic substrate with optimized cell density for efficient emissions conversion
• Integrated OEM-style O2 sensor port
• Attached heat shield included
• Oval body shape — 12 in. body length, 6.375 in. body width, 3.75 in. body height
• 2.25 in. inlet and outlet diameter (weld-on, center/center position)
• 16 in. overall length

Important: This is a Federal catalytic converter and is not legal for sale, installation, or use in the states of California, Colorado, or New York. Professional installation is strongly recommended, as custom cutting and welding are required.