How much have you lowered it by strat? Have you fitted an acc delete kit ?
Haven't got a specific ACC delete kit, the Bilsteins don't come with one, but the ACC is disabled, it just blinks occassionally, not the end of the world.
Its down by 15mm on the front 25mm on the rear. My 19s go on next week, so im waiting to see what it looks like/rides like with them on, before fine tuning the set-up exactly. Might drop it a little lower although i don't want to have problems with speed bumps so won't slam it.