This kit was made to my spec for an E46 non-M for a project that I gave up on, they are brand new, never installed except the brackets were bolted on the spindle to check for wheel clearance.
For E46 non-M front spindle, may fit some Z4's (not sure?)
Rotors: 360mm x 30mm x 46mm 2pcs rotors
Caliper: WP Pro L8 8 pistons, integrated heat shields (don't recommend using it in snow condition), T6061 forged alloy, carbon nitride treated heat shields.
Pads: 170 x 45mm L8 pads
You need at least 18" wheels for clearance, the retail is $3475 for the kit, I'm asking $2600.
Comes with everything to bolt this kit on incld braided brake lines.
Contact me through PM for more detail.