RSR's are track tyres (kinda) so handle the temps better, normal road tyres fall to bits and make you feel like you are driving on ice when they get to hot.
I never said go and buy Ikeya Formula Suspension arms and spend 2k on an alignment, I said get one to prevent things being difficult under brakes/mid corner etc You WILL find issues with your suspension on the track that you would never notice on the street
Also no need to go buy new turbos for 1 track day.
Just turn the boost down to standard and stay off the limiter
and your right foot, stops the rear end getting loose (bloody Cheater cars lol)