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