lets assume heez running 17x7 on 205/45
then an increas from 43 to 48 is fine
ur weels will stick out a little bit more thats all
but if ur gettin bigger rims it starts to get more complicated
if ur goin for 18z or 19z, ull need wider tyres, and then even a slight difference in offset MAY produce scraping and rubbing wen u turn or go over bumps
but plz provide more info
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