Need a replacement catalytic converter for your 1991 Chrysler Imperial? MagnaFlow offers high-quality catalytic converters engineered for 1991 Chrysler Imperial 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 Chrysler Imperial requirements and state vehicle registration to buy the best Imperial catalytic converter online that fits your '91 Imperial and meets your state’s emissions compliance.