Update:
Fitted 4x FK452s.
First impression: These tyres really feel good on the road. I can't comment on the performance yet until I have tested it
"thoroughly". but so far, it grips like a scared koala on a tree.

road noise is reasonable. At 38 psi, the car is still pretty comfy. no complaints so far.
looking at installing swaybars next as I can definitely feel a bit of excess body roll. Cannot see a reason to install coilovers just yet as I'm just not a fan of em. might have to invest on bilstein, Tokico, or KYB adjustable dampers if need be.
Hotchkis or Cusco swaybars? hmmm.