I can see how upgrading the rear brakes as well would provide a more balanced set up. There is undoubtedly more stopping power with those kits vs stock - I realize that. But our abs system is 20+ years old and not nearly as advanced as newer cars today (so says the critics) so it makes sense that it would hinder stopping distance if the abs is more prone to activate. I can see the advantage of reduced brake fade. I am just playing Devil's Advocate here to see if I can get a real 3rd party opinion of this particular front BBK option. I dont know of anyone who has actually performed a real comparison test vs oem.