Correct it is Journal bearing. A t28 BB compressor housing is bigger then the GTi-R compressor housing. Swapping it is good for about 25-30 cfm more air which = more HP. These turbos stock can make 300whp @ 15-16 psi so this one will make more than that. Also the bigger housing eliminates most of the lag associated with this turbo upgrade. If you want the stock t28 I can throw it in for some extra $$$$$$ and then you would have a bb spare. Besides where in the 1st post does it say that the turbo is bb?