Springs are $900 thru Dinan. Install was done thru an authorized Dinan dealer (Laurel BMW). Book rate is based on 8.9 hours of labor, which is also consistent with what others on the board have seen from non-Dinan installs. We all know that 8.9 hours is way too long, but it is what it is. Rate was $120/hour.
So, you are talking about $2000 installed at the end of the day.