I drive and win with my 700pp @897HP , GTR-35TC with no ABS, no aids, online and offline on the Nür, best time = 5:52.755s. Once you master a track , all you need to do is experiment with lower brake BIAS, in my case is 3/3 , as you will need to brake less and less in the game. (or just know when to coast , or use less than 10% braking with engine decel compression, into your next corner, instead of unsettling it with harsh braking, and sudden accel)
Also, I firmly believe all cars accel and reach top speed better, with ABS at 0, than at 1., it's by a hair, but I can sense it. I discovered this with the Expert Seasonal challenges a while back.
Try low pp shuffle races with 0 ABS too, and you'll lead the pack more than you'd ever know.