Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 452175. With features including free-flowing mandrel-bent tubing and highly corrosion resistant, stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency.Designed to fit the 1999-2000 BMW 323i, 1999-2000 BMW Z3, and more, this direct-fit catalytic converter also interchanges with OE part 11 62 7 503 673. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to be certified by CARB for legal use in CA/CARB restricted states for the listed vehicles.
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This Part Fits:

Year	Make	Model	Submodel
2000	BMW	323Ci	Base
1999-2000	BMW	323i	Base
2000	BMW	328Ci	Base
1999-2000	BMW	328i	Base
1999-2000	BMW	528i	Base
1999-2000	BMW	Z3	Coupe
1999-2000	BMW	Z3	Roadster