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05-16-2005, 06:48 PM
Does anyone know if they brake calipers that come on a ZCP equipped M3 have different piston diameters as compared to the standard E46 M3 brake caliper. I know the calipers have different part numbers because the ZCP caliper has to fit over a thicker disc. But I can't find out from the BMW literature if the piston sizes are also different.

I though maybe one of you guys might have converted your ZCP car to a BBK and have the calipers handy to where you could measure them.

I'd like to know the front and rear brake caliper piston diameters in MM.

Thanks in advance.


05-16-2005, 07:22 PM
I had gotten a price quote from him a few months back (and it seemed like a good price). I didn't go for it because I decided to get the PowerSlot rotors instead.

He should know the specs though.

'03 M3 w/ SMG
-SuperSprint Race Exhaust
-K&K 63 Intake
-Ground Control Street/Race Adjustable Camber Plates
-RRT Brake Cooling Kit
-PowerSlot Slotted Rotors
-Cobalt Friction Spec VR race pads (track use only)
-18x9.5 Comp SSRs wrapped in Dunlop Super Sport R Compound (track use only)

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