Yea mate 100% agree. Its widely accepted as a weak point on the M3's. I always intending on correcting this by purchasing a decent BBK when the front needed replacing.
I am planning on keeping the car and turning into a track wh*re in its later life so the AP brake set up was on always on the cards.
Then Dino decided to do a group buy on the brackets for the BMWP set up. And it came in at well under half price. So i was getting slightly tempted.
p.s on a side note. The induction noise from the carbon on the CSL is bonkers.