Quote:
Originally Posted by juld0zer
I personally would just fit the calipers and see what happens. The master swap is a big messy job to do at home and i'm sure your back will be knackered after doing the calipers alone on stands haha
I replied to the other thread but basically i am happy enough with my setup after i finally found the root cause of my inconsistent brake response (vacuum pump leak). I drive 1Ms and M3s (both E9x and F8x) for work and i cant help but think that there is more to it than just mechanical parts which contribute to the way our brakes feel.
If BMW stipulates you must encode/program the vehicle (DSC specifically) to tell it it has the 6pot/2pot Performance brake kit, there has to be a legit reason for it. Many people reported a positive difference after adding SPBR to their VO following an F30 Brembo upgrade on their E9x. It is my belief that there is a software restriction on the fluid flow volume and rate which is holding back the true performance of these calipers.
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Funny you should mention your vacuum leak. The only other difference on M3s is the Addition of a vacuum pump. Whether it's the whole cause or just a contributor remains to be seen. Race cars don't use boosters because the feel is inconsistent(among other reasons). What if that's the reason they put it in n the first place ?