On my 94 gsr=== On the rear you half to space it out one quarter inch and flaten the wheel opening lip. The tire will occasionally rub a very small amount on the inside on the control arm that goes toward the front of the car. I race mine in road racing and it is no big deal
On the front no spacers needed and the only small rubing on tight turns on frame rail. and My car is lowered about 2 inches.