Let me check in my attic. I've got a top mount setup with the stock BOV still on it, and I just might have kept the fugly DSM flange. I know I thought about keeping it... just can't remember if I followed through.
Anyhow, if I do have it, I can double check to see if it is the same. Furthermore, you can have it for the cost of shipping (it's really ugly) if I do.
its the same as the 1st gen DSM, vadim, your best bet is to get some custom piping done. Get yourself a good shop to make you some pipes TRUST me youll never regret it, get a greddy flange and a greddy BOV, recirc it and call it a day. But if you want to uses pieces use these.