Issue is concerning wheels sizes/tires :

I'd like to know (seeing that im not tire/wheel expert) if i can fit a 18x7 wheel with a +42 displacement on my s2k? better yet wat tire size would i use to fit my car without scrubbing? anyone with knowledge who could help me out i would appreciate it


note : this specifically revolves around the Focal F5 racing wheel.

 

Do you mean on all four corners or for the front only?
I wouldn't recommend putting that size on all for corners. Changes the handling characteristics of the car in a bad way. Your rear will step out more easily.
+42 with 7" width should be ok with stock height. Not sure if lowered.
With a 7" width wheel, I think you can only get a max of 215/40 tires on that.

 

When changing out the tires has anyone gone to a wider tire with a lower profile on the 16" rims"