Need a replacement catalytic converter for your 1985 Plymouth Colt? MagnaFlow offers high-quality catalytic converters engineered for 1985 Plymouth Colt sub-models and engine sizes. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. Select your 1985 Plymouth Colt requirements and state vehicle registration to buy the best Colt catalytic converter online that fits your '85 Colt and meets your state’s emissions compliance.