Need a replacement catalytic converter for your 2003 Mercedes-Benz CLK55 AMG? MagnaFlow offers high-quality catalytic converters engineered for 2003 Mercedes-Benz CLK55 AMG sub-models and engine sizes. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. Select your 2003 Mercedes-Benz CLK55 AMG requirements and state vehicle registration to buy the best CLK55 AMG catalytic converter online that fits your '03 CLK55 AMG and meets your state’s emissions compliance.