I've got the sport seats. The steering wheel looks very similar to the one I've already gotUh.. that thing known as "S54B32" under the hood is pretty badass!
The hydraulic steering rack? Not sure if you can (simply) transfer it over to a standard Z4?
The sport seats (if you don't have them already)
I believe you have to transplant the kingpin assemblies as well to install the M calipers and rotors on the front. When you're done with that you'll have rotors that cost 5X the non-M rotors to replace and pads that are 3X the cost.I've got access to a wrecked z4 M. What parts are worth buying off of it? Perhaps brake calipers and rotors? Anything else?