[ChuckB]

Still working out a few details, but here is the plan:

The BMW Performance Brake Kit [E9x] kit is sitting in the garage [Large Thanks to Turner BMW]. This will take the stock 30i front rotors from 330x24 to 338x26 and should fix the fading issue.

This will require minimum 17" wheels, but be warned - ONLY BMW 17" wheels will fit. They have a recess on the back side that allows them to clear the 6 pot caliper and the larger caliper on the 35i/35is. Non BMW 17" wheels have issues fitting.

Rear set up. The European 23i and the 30i share the same rear brake pieces, and the European 35i and 35is share pieces. My figures show that the US version of the 35i uses the same parts as the European 30i, while on the 35is uses the larger rear setup. So I have the really really nice BMW folks set to test the European 35is pieces on the rear. Currently scheduled for March 16th, which is when the snow tires com off. Currently waiting on European Spec [I need the A.B.E. [Allgemeine Betriebserlaubnis] to make the parts Road Legal in Germany] EBC Yellow rear pads and a set of Steel Flex brakes lines for all 4 corners.

sDrive23i [Euro & non US]
Front Caliper 34 11 6769091 [L]/ 2 [R]
Front Carrier 34 11 6769095
Front Rotor 34 11 6772669 [300x24]
Rear Caliper 34 20 6786057 [L]/8 [R]
Rear Carrier 34 20 6786046
Rear Rotor 34 21 6782605 [300x20]

sDrive30i [both US & Euro model] & sDrive35i [US model]
Front Caliper 34 11 6769093 [L]/ 4 [R]
Front Carrier 34 11 6769097
Front Rotor 34 11 6782601 [330x24]
Rear Caliper 34 20 6786057 [L]/8 [R]
Rear Carrier 34 20 6786046
Rear Rotor 34 21 6782605 [300x20]

sDrive35i [European Model]
Front Caliper 34 11 6773201 [L]/2 [R]
Front Carrier 34 11 6773203
Front Rotor 34 11 6782593 [348x30]
Rear Caliper 34 20 6786067 [L]/8 [R]
Rear Carrier 34 20 6786069
Rear Rotor 34 21 6782607 [324x20]

sDrive35is [Both Euro & US]
Front Caliper 34 11 6773201 [L]/2 [R]
Front Carrier 34 11 6773203
Front Rotor 34 11 6782593 [348x30]
Rear Caliper 34 20 6786067 [L]/8 [R]
Rear Carrier 34 20 6786069
Rear Rotor 34 21 6782607 [324x20]

Hope this makes sense, and I didn't get bit by the cut & Paste monster putting this together, and before you spend any money please verify the above with BMW, but I will report back with the final results and if work permits, and I can get to the dealer at the right time - photos are hoped for of the installation.