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