Need a replacement catalytic converter for your 1981 Mercury Capri? MagnaFlow offers high-quality catalytic converters engineered for 1981 Mercury Capri 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 Mercury Capri requirements and state vehicle registration to buy the best Capri catalytic converter online that fits your '81 Capri and meets your state’s emissions compliance.