After furter research found that it's a BavAuto unit, thanks.
it came from a donor car, owner was deffently an E30 fan, it yielded Eibachs Pro Kit springs, new Boge Turbo shocks, real Dinan chip, Super Sprint muffler and the bent to he11 bar.
I'm runing IE strut bar and i'm very happy with it.
Cheap, hahahha $ 220+ bucks., home made ? think not.