
Not necessarily. The grooves collect brake dust, so when full can reduce braking efficiency as it's pad-on-pad. There are also good arguments against drilled, as they can cause scoring of the pads over time which again reduces braking efficiency.flybobbie said:Better with grooves as they catch any grit and reduce scoring. Been happy with the ones i fitted, half the wear of the stock discs and less dust with green stuff pads.
I've got these on my 440i. They look nice but squeak like a bastid and don't stop any better than the Z4 TBH. And cost a hell of a lot more to change.Deepseaskateboard said:I have seen someone on here have M2 / M140i (blue style) callipers in a photo…
Deepseaskateboard said:I have seen someone on here have M2 / M140i (blue style) callipers in a photo…
They bring the car up to date, and BMW would have likely put these on the Z4 had it been released at a similar time.
Would be good to see what would be needed to do that modification.
I have seen spares on ebay, not much change from £1000 but it looks amazing.
Can only go by my own experience of that type of disc. They have done no harm and improved disc life and look good.Pondrew said:Not necessarily. The grooves collect brake dust, so when full can reduce braking efficiency as it's pad-on-pad. There are also good arguments against drilled, as they can cause scoring of the pads over time which again reduces braking efficiency.flybobbie said:Better with grooves as they catch any grit and reduce scoring. Been happy with the ones i fitted, half the wear of the stock discs and less dust with green stuff pads.
All nonsense IMHO unless you are in a competitive racing team!![]()
birdy_z4 said:I’ve used mtec drilled and groved
Black paint on the callipers and silver caps on the nuts
Badge upgrade from Ali
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