Need a replacement catalytic converter for your 1990 Dodge Dynasty? MagnaFlow offers high-quality catalytic converters engineered for 1990 Dodge Dynasty 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 Dodge Dynasty requirements and state vehicle registration to buy the best Dynasty catalytic converter online that fits your '90 Dynasty and meets your state’s emissions compliance.