Need a replacement catalytic converter for your 1991 BMW 750iL? MagnaFlow offers high-quality catalytic converters engineered for 1991 BMW 750iL sub-models and engine sizes. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. Select your 1991 BMW 750iL requirements and state vehicle registration to buy the best 750iL catalytic converter online that fits your '91 750iL and meets your state’s emissions compliance.