let's clear something first
since u are using 15" rims, i assume this is ur spec for tyre
195/50/R15
rite
195 is 195mm is the tyre width
50 is the percentage of the tyre width as the height of the tyre which means ur tyre height is 50% of 195mm
R15 is the rim size
okay, here is a good suggestion
get 195/55/R15 tyres. more comfort and a slightly higher ride
plus ur rims wun get dented so easily
tyres will be slightly more expensive at around RM200 a piece for eagle F1
195/50/R15 tyres can get for around RM 160 for eagle F1 larrr
u want both comfort and stablility, that is not really possible
u have to have a balance and from what i can tell, the oem springs and abs are good enough
please dun make ur rear higher than the front, that may look 'cool' and all but undoubtly will terribly affect ur handling
try taking corners with that setup, guarentee fishtail
what i would suggest is get some ARB and definately a 4 point strut bar for the bottom front
mind telling me which version of wira are you driving?