Magnaflow Catalytic Converter Direct Fit 1991 BMW 318I

Direct-fit catalytic converter MagnaFlow Conv DF 1991 BMW 318I 1.8L delivers emissions control while helping keep the check engine light off for reliable operation.

This MagnaFlow Standard Grade Federal/EPA compliant direct-fit catalytic converter (part 23799) is engineered for straightforward replacement with no cutting or welding required, enabling a DIY install with the proper tools.

• Federal/EPA compliant — Meets emissions regulations to restore legal emissions performance and avoid compliance-related faults.
• Direct-fit design — Factory-style fitment simplifies installation and maintains factory mounting points and orientation for predictable integration.
• No cutting or welding required — Designed for bolt-on replacement to reduce installation time and complexity when using standard tools.
• Mandrel-bent tubing — Smooth, unrestricted bends minimize flow restrictions, supporting high-flow exhaust dynamics.
• Stainless steel construction — Corrosion-resistant materials provide durability and long-life performance in exhaust environments.

Value and performance: this MagnaFlow converter restores emissions system functionality while preserving exhaust flow characteristics through mandrel-bent tubing. The direct-fit, no-weld approach reduces labor and installation risk, and Federal/EPA compliance addresses regulatory and onboard diagnostic (OBD) concerns.

Application note: sold under the MagnaFlow brand and supplied as part number 23799 for the specified vehicle application; suitable where a OEM-style direct-fit catalytic converter is required.