Originally posted by mr2guru
And don't really expect too much more braking power.
I'd expect just over 10% more braking power in the rear...
10.4 vs. 11.4 puts the braking force about 10% further out. Given the same pressure, you'll have ~10% more stopping force, think of it as a lever, you just got a longer one.
You also increased swept area, which will allow better heat dissipation, but I doubt that's a big issue on the rears.
Looks like a no brainer for anyone doing the fronts that doesn't want to go whole hog like the Wilwood rear kit.