A collection of links that are useful for various reasons
RealOEM is a great resource for identify original part numbers or cross compatible chassis parts for a project you may be working on. Using the last 7 of your VIN can get you a lot of good info.
Eric and Nancy run BimmerBum Co. They are Z3 community superstars and put together Schuh Syndikat each year. They are active members of ZSCCA and do a ton for Zfest. Plainly, they know a ton about the Z3 chassis and what works and doesn’t, if you need parts or help deciding on a project scope they are amazing and their customer service cannot be beat.
Jon has been a Coupe owner well before I was in the community, he has helped dozens of coupe owners connect with their coupes and runs and manages the buyer’s guide sites that hold a bunch of good info and data. If you are looking for info or listings for the chassis listed Jon’s sites should be your first stop.
Ben Fenner is a long time coupe owner that spent countless hours compiling and organizing DIY and reference threads across bimmerforums. In a falling out with the at the time moderator of the Z3 sub-forum he decided to move his work to a sr-20 forum to host his curated content. don’t be fooled by the url, this is a 100% pure Z3 thread. Some of the information may be lost to time, but that’s what we’re here trying to restore.
Abel manages a google drive with the most up to Date info on the INPA, the TIS, & wiring schematics for the Z3 chassis. He manages this for free to use through a google drive that is posted in the Bimmerforums post linked above.




