Now now boys, play nice!
Marius is a tease, but Phil, you're doing worse at this moment. Let it go.
Anyways: It all depends on what wheels you have. I have 9,5 at the rear with ET27, 8,5 in front (not sure on ET value) with 15mm spacers in the front (non in the back, wide enough already). With my 108's I had 15mm in front and 20 in the back, OEM suspension. Surely with a 20 mm drop you should not expect any rubbing issues. I have quite some rubbing due to 40mm lowering, but mostly because I chose bad springs (FK's). 20mm is not an issue, but if you want to go lower, you'll need to change the shocks too, for sure.
Marius is a tease, but Phil, you're doing worse at this moment. Let it go.
Anyways: It all depends on what wheels you have. I have 9,5 at the rear with ET27, 8,5 in front (not sure on ET value) with 15mm spacers in the front (non in the back, wide enough already). With my 108's I had 15mm in front and 20 in the back, OEM suspension. Surely with a 20 mm drop you should not expect any rubbing issues. I have quite some rubbing due to 40mm lowering, but mostly because I chose bad springs (FK's). 20mm is not an issue, but if you want to go lower, you'll need to change the shocks too, for sure.
