Need a replacement catalytic converter for your 2015 Scion iQ? MagnaFlow offers high-quality catalytic converters engineered for 2015 Scion iQ 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 Scion iQ requirements and state vehicle registration to buy the best iQ catalytic converter online that fits your '15 iQ and meets your state’s emissions compliance.