Need a replacement catalytic converter for your 1993 BMW 525iT? MagnaFlow offers high-quality catalytic converters engineered for 1993 BMW 525iT sub-models and engine sizes. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. Select your 1993 BMW 525iT requirements and state vehicle registration to buy the best 525iT catalytic converter online that fits your '93 525iT and meets your state’s emissions compliance.