Who cares wether it is a Garrett, Turbonetics, HKS, APexi or god himself created it in a workshop in Switzerland, it's a T04e, an old crap desgined turbo which is outdated in every single way. There is a reason you got it for $300. Honestly mate, if you have spent the money on the engine build fork out the extra couple of grand and get yourself a decent modern turbo. You shall be very dissapointed by the TO4e just like many others have that soon upgraded to something different.