none of mine are that bad but the RSX and the Supra each seem to have exceedingly wide turning radius. The Skyline is better, but its diff. is really loud. I guess I'll try the suspension kit first and see if it helps.
if you heat the tips of your steering racks until the plastic softens a little you can bend the tips so they sit forward further in their slots on the steering knuckles..this will increase the angle the wheels turn left and right.i heated my tips in salt on my electric stove..try it out on the red racks from the suspension upgrade