Need a replacement catalytic converter for your 2003 Mini Cooper? MagnaFlow offers high-quality catalytic converters engineered for 2003 Mini Cooper 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 Mini Cooper requirements and state vehicle registration to buy the best Cooper catalytic converter online that fits your '03 Cooper and meets your state’s emissions compliance.

Need a 2003 Mini Cooper replacement exhaust system? Shop all BRExhaust 2003 Mini Cooper Direct-Fit Replacement Exhaust Systems to find the best aftermarket kit to replace your 2003 Mini Cooper OEM exhaust.

MagnaFlow offers complete performance exhaust systems for your 2003 Mini Cooper. Determine the power and sound you demand for your 2003 Cooper and shop all available exhaust systems online. Select your '03 Mini Cooper sub-model and engine details to buy the best exhaust system that fits your needs.