MagnaFlow Catalytic Converter Fits select: 1988-1989 NISSAN D21, 1987-1989 NISSAN STANZA

Standard Catalytic Converter by MagnaFlow. Converter Configuration: Direct Fit. With Gaskets. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.25". Catalytic Outlet Diameter: 2.25". Catalytic Converter Overall Length: 12.5". If your car needs replacement, install one that will get you through the smog check. This converter will directly replace the factory unit, with little or no fabrication required. The Direct Fit Catalytic Converter is an exact replacement for your stock converter, with an interface at either end that will allow it to be bolted into the exhaust system. No fabrication or modifications are usually required. It’s available in OBD II (On-Board Diagnostics, 2nd Generation), Pre-OBD II, and OEM Grade OBD II configurations. Pre-OBD II is for early vehicles (generally 1995 or older), which were equipped with 2-way, 3-way, or 3-way with air injection converters. Two-way converters oxidize harmful Hydrocarbons (HC) and Carbon Monoxide (CO) along with seco