Alfa Romeo Forum - View Single Post - Front disc replacement...drilled, slots or std
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AO Silver Member
Join Date: Nov 2012
Location: Wiltshire
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Posts: 2,070
I can’t see how drilled/grooves disks can corrode more quickly, that is determined by the material used in manufacturing and not if it has grooves/holes put in.

I have recently fitted grooved/dimpled discs to my 5 series and not found them to be noisy at all. Not done many miles on them so can’t comment on pad wear as yet but for the price I paid it was a no brainier compared to bmw price for 2 piece discs even on their value range.
johnnyroper is offline  
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