Need a replacement catalytic converter for your 1990 Subaru XT? MagnaFlow offers high-quality catalytic converters engineered for 1990 Subaru XT sub-models and engine sizes. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. Select your 1990 Subaru XT requirements and state vehicle registration to buy the best XT catalytic converter online that fits your '90 XT and meets your state’s emissions compliance.