Brake bias is actually on par, as far as I can tell. No bias valve or master cylinder change, yet. I've driven it hard on the road, and stomped to lock up my brakes. From 40 MPH hard stop, my car dives a little bit. It's definitely not as front biased as with OEM rears, but I like the feel of it so far. I would like to compare this setup to the OEM rear setup one day, but swaping out stuff like that is a PITA. For now, I'll leave it as is until I can afford a larger MC and possibly a bias valve for fine tuning.