Need a replacement catalytic converter for your 1990 BMW 735iL? MagnaFlow offers high-quality catalytic converters engineered for 1990 BMW 735iL sub-models and engine sizes. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. Select your 1990 BMW 735iL requirements and state vehicle registration to buy the best 735iL catalytic converter online that fits your '90 735iL and meets your state’s emissions compliance.