Need a replacement catalytic converter for your 1981 Dodge Aries? MagnaFlow offers high-quality catalytic converters engineered for 1981 Dodge Aries sub-models and engine sizes. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. Select your 1981 Dodge Aries requirements and state vehicle registration to buy the best Aries catalytic converter online that fits your '81 Aries and meets your state’s emissions compliance.