Rear Rotors to match with Z4M/M3 CSL rotors - Bavauto's any good?

[BiscottiGelato]

I got my hands on some Tronik/Dieselboost adapters a few years ago. I finally got some Z4M/M3 CSL rotors to go with them.

My dilemma is on the rear rotors instead. Currently I use some PowerSlots. I am thinking if I should get some cross drilled rotors to match the fronts (purely for look). I do do some light tracking of the car tho. The only cross-drilled only rotors I found are the Bavauto ones.

Anyone actually got some photos of Bavauto Cross-drilled rotors? Are they any good? Cast in holes or drilled after-the-fact?

What's my next best option if the Bavauto ones are no good? Kinda sucky to have blanks or slots at the back mismatching the Z4M/M3 CSL front rotors...

Thanks for all suggestions~

[jbv]

You can change the rear hubs and fit the rear e46 csl rotors, the 10mm shorter hub should preserve the hand brake functionality too.

http://www.ecstuning.com/BMW-E82-135....0L/ES2762929/

http://www.1addicts.com/forums/showthread.php?t=975919

I've yet to see anyone do this modification.

[Dackelone]

You could also go with BMW Performance rear brake rotors. They are dimpled not drilled thru. Still they look good. I have them on my car.


PS: don't forget IF you change the rear brake rotor to a different unit/part... your gonna need to do something about the hand/parking brake. The OE design uses brake shoes inside the rear rotor hub.

[andrey_gta]

With caliper spacers( my guess 5mm) the rear 135i calipers will probably work with csl e46 rotors.
You can use longer Caliper bolts from BMW as well. The info is in the above link and then the z4 forum link there that uses x3 rotors

[BiscottiGelato]

Thanks for the information. It's going to be difficult sourcing the caliper spacer. And it's more than I'd like to spend for merely the rear rotors (largely inconsequential performance-wise compared to the fronts).

Leaning on blanks unless there's a better largely plug-n-play alternative.