Nearly 30 years of obsessively cataloging, photographing, and taking video of each part means it will fit your 2003 BMW Z4 49 State Universal Converter - 2.5i - 2.5L Catalytic Converter.
Period. No Hassle. GUARANTEED.
We cover round trip shipping if we make a mistake.
Check out the video below to view the Guaranteed Exact Fit process from start to finish!