Need a replacement catalytic converter for your 2004 BMW 545i? MagnaFlow offers high-quality catalytic converters engineered for 2004 BMW 545i sub-models and engine sizes. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. Select your 2004 BMW 545i requirements and state vehicle registration to buy the best 545i catalytic converter online that fits your '04 545i and meets your state’s emissions compliance.

MagnaFlow offers complete performance exhaust systems for your 2004 BMW 545i. Determine the power and sound you demand for your 2004 545i and shop all available exhaust systems online. Select your '04 BMW 545i sub-model and engine details to buy the best exhaust system that fits your needs.