hey guys i just purchased a 2003 lexus gs300. i have some questions i wanna lower my ride but wanna know how low should i go cause i wanna put some 20x10 on the rear and 20x9 on the fronts... i want it to be flush. was wondering if this will be a cool setup.. DONT WANT RUBBING... would really want some of your guys advise...thanx...herm

 

If you want to minimize rubbing then take out your fender liner.

 

Yep take out the top portion of it in the front, then take out the black reinforcement trims in the front and rear....
With a 20x9//20x10 you should be able to bring in the ET ~ into the mid to high 20's with a shave in the rear minor pull in the front, and it also then depends on tire sizing whether you want square shoulders (which would pull your ET into the low 30's or stretched tires)