Quote:
Originally Posted by nonot
So let me understand: I can replace my x3 front calipers and rotors (328x28) with a stock X5 f15 caliper and rotors (332x30)? Anyone done this?
The reason being I want to improve my x3 brakes and I have spare f15 front calipers (no rotors at the moment).
If the calipers would fit, how about the rotors? Any issue with the hub size?
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I've not measured it, but according to interchange of parts between X3/4/5/6, rotor bore size is the same and caliper bolt spacing is the same in the front. In theory, any X3/4/5/6 brakes will bolt right on up front.
If you have spare calipers, you'd probably only need the rotors. That said, the upgrade from 328/28 to 332/30 is so negligible I wouldn't bother.
The 395/36 four or six piston setup are the real performance upgrade options.There's a dual piston sliding caliper 365/36 or 385/36 option, too, for those wanting to clear smaller wheels.