Do all E86 (2006-2008) Z4Ms have the same rear brake calipers as a ZCP/CSL E46 M3? i.e black calipers with 46mm pistons (vs standard M3 42mm)? This is what I had read and researched looking to upgrade to ZCP rear brakes, but I just got a set of rear calipers from a 2006 Z4M I bought on eBay and the pistons are 42mm (pics below)... look exactly the same as my standard 2004 M3s rear brakes...
So is it just some years of the Z4M or did this seller screw up? I figured maybe they sent me standard M3 rear brakes, but the carriers/brackets seem to be different from the E46 ones and the brakes are painted gloss black... (third pic is from ebay listing showing carriers and complete brakes)
So is it just some years of the Z4M or did this seller screw up? I figured maybe they sent me standard M3 rear brakes, but the carriers/brackets seem to be different from the E46 ones and the brakes are painted gloss black... (third pic is from ebay listing showing carriers and complete brakes)
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