Need a replacement catalytic converter for your 2001 Infiniti G20? MagnaFlow offers high-quality catalytic converters engineered for 2001 Infiniti G20 sub-models and engine sizes. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. Select your 2001 Infiniti G20 requirements and state vehicle registration to buy the best G20 catalytic converter online that fits your '01 G20 and meets your state’s emissions compliance.