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The MagnaFlow California manifold catalytic converter for 2001–2003 BMW 525i and 530i is a CARB‑compliant direct‑fit replacement that helps keep the check engine light off. Spun‑body construction and mandrel‑influenced flow preserve OEM exhaust dynamics, while stainless steel materials and included gaskets and hardware simplify installation and reduce the chance of sealing issues.
MagnaFlow Direct Fit Catalytic Converter BMW 5 01-03 front
