Grinding noise under hard cornering.

[172-sport]

hi all i have got a ph2 172 and i have just fitted some FK coilovers and had the suspension set to 1.5 degree's of camber and standard toe.
but now i have got a very nasty grinding noise and vibration when cornering hard to the left. I was thinking it might have been the offside drive shaft but that seems to be ok.

any ideas?

thanks.