Please help with a brake bias question

[dmw16]

To start with I'm using this as reference:
http://www.m3forum.net/m3forum/showthread.php?t=412927

I am thinking of getting a set of ST40 calipers for my 2005 ZCP M3. I found a good deal on the set not designed for the ZCP car. So if I were to swap over to regular m3 rear calipers what would happen to my brake bias?

It looks like it would move rear 7% but I might be wrong.

Any help would be awesome. Thanks.

[Car54]

Originally Posted by dmw16

To start with I'm using this as reference:
http://www.m3forum.net/m3forum/showthread.php?t=412927

I am thinking of getting a set of ST40 calipers for my 2005 ZCP M3. I found a good deal on the set not designed for the ZCP car. So if I were to swap over to regular m3 rear calipers what would happen to my brake bias?

It looks like it would move rear 7% but I might be wrong.

Any help would be awesome. Thanks.

Maybe try posting in an E46 M3 section for more response.