Talk to boostd710 on here, names Jay. I was supposed to buy his Powerdyne BD-12 (8psi fully rebuilt) but I kinda stroked him so I feel bad...You should buy it haha, good deal.
I saw you were asking about powerdyne's in another thread. They are ok at best. Will they make boost? Yes. Reliably is another story. Belt breakage is real common with these units if you are looking for anything more than 6 psi. It would be money well spent to use another brand of blower IMO.
^^^ Well I guess his was redone with a Kevlar GT Belt and all new ceramic bearings, which are supposed to be stronger than the stock internals...Thats why I think his would be the upper hand compared to the poor reliability on the factory Powerdynes...But yeah I have heard the same thing.