What he said, I would guess they are 8j et45 because all the lambo reps I've seen are and its a very common size. If that is the case and they are 225 tyres then you should be fine, you may get the odd touch when weighed down or cornering hard.
Also depends how low you're going, if you are lowering it a lot then you might want to consider getting the front arches rolled as that will help a lot, mine very rarely rub now.