Restore proper emissions performance with the MagnaFlow 280121 OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter for select 2016-2020 Honda Civic models with the 2.0L engine. Designed as an underbody single-converter replacement, this part replicates original-equipment geometry and flow characteristics to support factory-like engine operation, fuel efficiency, and emissions control. It is intended for OBDII vehicles equipped with California or Federal/EPA emissions systems and is designed to meet or exceed applicable Federal emissions requirements established by the EPA.

MagnaFlow uses advanced 3D scanning and metrology processes during development to help ensure accurate fitment and reliable function. The direct-fit design supports installation with standard tools and requires no cutting or welding when replacing the corresponding original equipment component. Included installation hardware consists of three flange gaskets, three bolts, and one nut, helping simplify the replacement process. Always verify vehicle application and emissions configuration before installation.

The MagnaFlow 280121 features free-flowing mandrel-bent tubing that maintains OEM-like design and geometry while minimizing restrictions in the exhaust path. Durable stainless steel construction provides strong corrosion resistance, while a compact, low-mass design promotes efficient thermal performance. A single laser fusion weld helps reduce potential leak points, and durable 308 stainless steel MIG welds support long-term serviceability. OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel help reduce exhaust noise and vibration.

This catalytic converter interchanges with OE part 18150-5BA-L00 and is designed for select 2016-2020 Honda Civic 2.0L applications. It is not approved for sale or use on vehicles requiring California Air Resources Board certification. Confirm compatibility with the vehicle’s year, engine, emissions system, and local regulations before purchase or installation.

Features:

• EPA-compliant design for OBDII vehicles with Federal/EPA emissions systems
• Direct-fit replacement for select 2016-2020 Honda Civic models with the 2.0L engine
• Mandrel-bent tubing maintains OEM-like geometry and supports smooth exhaust flow
• Stainless steel construction provides strong corrosion resistance and extended service life
• Compact, low-mass design promotes efficient thermal performance
• Single laser fusion weld helps reduce potential exhaust leak points
• OE-sized 410 stainless steel exhaust hangers help reduce noise and vibration
• Durable 308 stainless steel MIG welds support reliable long-term performance
• Includes three flange gaskets, three bolts, and one nut for installation
• Interchanges with OE part 18150-5BA-L00