I just received my Holset HX35 that i bought on ebay,When i was checking her out notice this adapter it looks like -6 or -4 an and has what it seems a restrictor build in.And i need a pro on holset turbos to tell me if this and original part from holset or if is an aftermarket piece.

It's an ebay one

Same as the one featured in this kit

http://www.ebay.com/itm/Oil-Feed-Li...Parts_Accessories&vxp=mtr&hash=item1c20163440

Thanks bro!! now i need to now what is the size of that orifice to see if i need the restrictor or not.