Need a replacement catalytic converter for your 2015 BMW i3? MagnaFlow offers high-quality catalytic converters engineered for 2015 BMW i3 sub-models and engine sizes. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. Select your 2015 BMW i3 requirements and state vehicle registration to buy the best i3 catalytic converter online that fits your '15 i3 and meets your state’s emissions compliance.