Mine have spacers front and rear, were on the car when I bought it, I reckon 15 front 20 rears and they just sit without bolts between the wheel, I've had no issues as such, I have noticed the car pulls more to the left and the tyre pressure is correct, although I haven't done laser alignment yet I can only assume it's the camber of the road. Would it be fair to say it may pull to the camber more because it's so low?