Need a replacement catalytic converter for your 1978 Oldsmobile Starfire? MagnaFlow offers high-quality catalytic converters engineered for 1978 Oldsmobile Starfire 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 Oldsmobile Starfire requirements and state vehicle registration to buy the best Starfire catalytic converter online that fits your '78 Starfire and meets your state’s emissions compliance.