as per Z1's website "Non-ballbearing design uses stock turbine housings which are precision CNC machined to house the larger turbine wheel. 35#/min compressor, high-efficiency GT series turbine and compressor wheel." why is this any different than the t25 into a t28 deal. everyone says it's to big for the housing and it creates more heat and cant clow as much or something like that. they are just cramming a bigger turbine and compressor wheel into it. it seems the same to me. let me hear why im wrong. cause im sure theres a reason.