A 2003 BMW M3 header is a great way to free up horsepower and exhaust note. Our exhaust headers are designed to connect to you’re 2003 M3 catalytic convertor or mid pipe with no cutting or welding. All of our listed headers come complete with a quality finish and hardware when necessary so installing them on your 2003 BMW M3 is straight forward. If you need help finding the performance header you want for your 2003 M3 our experts are standing by at 1-800-780-1409.
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