I have posted long time ago when I upgraded my calipers to 4 piston calipers and I had early ABS intitiation, the replies was all about bleeding and pressure bleeding.

I have pressure bled the system when I upgraded my transmission to manual since it uses the same fluid container, but the problem still persists. I whould like to know what would trigger the ABS system as my brakes hold much better before the ABS is triggered, once its on the car seems to slip on the road more forward than it should be.

I once hit the brakes at high speed few times and made the disk hot, when I observed the disk I saw the traces of the contact area which was in the middle of the disk but the both sides were still white " without the darker blueish colore" so it seems that the pads are not in full contact .. I made the bedding procedure to make sure they are in place but still no use !!

any advice ?? ... thanks in advance