Need a replacement catalytic converter for your 1978 Lancia Beta? MagnaFlow offers high-quality catalytic converters engineered for 1978 Lancia Beta sub-models and engine sizes. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. Select your 1978 Lancia Beta requirements and state vehicle registration to buy the best Beta catalytic converter online that fits your '78 Beta and meets your state’s emissions compliance.