So I just lowered my 2007 is350 on eibach springs ( the least aggressive drop ) and on hard dips or turning the wheel all the way in either direction my tires seem to rub a bit on the fender liner my wheels are 19x8.5 running 235/35/19 so my question is this normal? Any fix to it or just a part of being a little lower lol the tires aren't rubbing on the fender that I can see just the plastic inner liner

if your running 235 in the front without a roll, and depending on your offsets, there's a good chance you'll rub

Easiest way to fix this is to heat-gun the fenders

So if I roll the fenders they won't rub on the fender liner anymore? Sorry kinda new to this lol

^Nope, it is the size of tire AND offset of the wheel you are running that is causing the fender liner rubbing issue. Your best bet is to let the tire rub through it OR find a heat gun and press back the affending portion of the liner back.

GL!