Had to withdraw with a very very heavy rubbing sound on hard right turns. I have manual steering & could feel whatever it was through the steering wheel.

Differences from last year Anti-Moan brackets on rear axle, HTS+ pads all round, NITTO 555R 245X45X17" F (factory spec @ 44pai 25.94tall X 10.08 wide vs NITTO 555 255X40X17 25.08 tall 10.16 wide . Car raised to 4" from 3-5/8th to clear speed bumps in DD driving.

The mystery. I can't find any signs of a rub on the tires or body or wheel wells. Car was OK in normal DD driving for the past few months.

Really at a loss as how to diagnose the problem.