Quote:
Originally Posted by Horigan
Has someone actually put bigger piston calipers on a 128 and liked the pedal feel? Seems like you would need the 135i master cylinder also to maintain good pedal feel. Matching larger brake pistons with a small master cylinder piston will result in a soft pedal...
Rich
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Agreed on the theory....but the upgrade from a sliding caliper to a 1 piece caliper like the 135i makes for a huge difference in pedal feel IMO even without touching the master cylinder (saying this from empirical/personal evidence after the swap). After all, BMW sells these calipers as part of their upgrade kit for the 128i, so they must have done the math/work to ensure it is compatible with the stock 128i master cylinder.