Need a replacement catalytic converter for your 1991 Subaru Justy? MagnaFlow offers high-quality catalytic converters engineered for 1991 Subaru Justy sub-models and engine sizes. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. Select your 1991 Subaru Justy requirements and state vehicle registration to buy the best Justy catalytic converter online that fits your '91 Justy and meets your state’s emissions compliance.