Turbo leaking oil

I bought a NEW turbo from well know shop and has leaked oil out frt. and back since day one right behind the wheels. I can fire truck up let idle for 10mins. to warm up pull frt. cover oil everywhere,I can go do boost launches pull frt. cover and still covered with oil. Sent back to the shop they tore it down found nothing wrong sent back put it on last night and same thing oil everywhere. They say run it it's normal I cannot believe that. Do they need to be ran a couple times to get seated in?

How big is your engine breather tube?

All 3 are 1.5-2" hoses, It's not engine related I have been running one turbo all year with no problems then I buy this POS and it leaks. My buddy had one built just like it from the same company same guy and I installed it and it don't leak. Put mine back on a it leaks. Put his on don't leak I have did this several times. I have ran the truck for 30min with 3 boost launches with his turbo pulled the cover and no leaks guess I'm going to Scheids on a borrowed turbo.