If you have a donor car. Why not, go for it. It's a very hard mod to find parts for and it took me over a month to source and I just happened to stumble upon it.
I don't have a measurable number on how much this helped me. But, generally speaking when you do a big brake upgrade in the fronts only you get a ton of brake bias that makes the front end dive hard. My car brakes pretty nuetrally from front to back. I brake flat if that makes any sense. Especially when I have my track pads on, it feels like I'm hitting a brick wall..