I've always used Zimmerman cross drill brakes on my VW's. Now I have a set that is cross drilled and slotted on my 330ci. Never had any issues. They are great rotors. Picked F and R up for 315.
Originally Posted by steven747
no they dont crack ive had my drileld zimemrmans for 8 months with very very aggressive street driving canyons runs twice a week and a few track days and they are still in great condition zero cracks
ZHP Mods: JB Lightweight fly wheel (10.5 pounds), Koni FSD ProKit, Supreme Power Drop Hats, Hotchkis front(30.2mm) and rear( 25.4mm) sway bars, Sprint Booster, AFE Stage 1 Intake (Dry Filter), Morimoto EvoX-R Headlights, Orion V4 Angel Eyes.
330xi Mods: Front Koni Yellow Struts and Rob43 Rear 9 Way adjustable Rear Dampers, H&R Sport Springs, Supreme Power Drop Hats, ZHP 5 speed shift knob