Need a replacement catalytic converter for your 2000 Saturn LS? MagnaFlow offers high-quality catalytic converters engineered for 2000 Saturn LS sub-models and engine sizes. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. Select your 2000 Saturn LS requirements and state vehicle registration to buy the best LS catalytic converter online that fits your '00 LS and meets your state’s emissions compliance.