I don't think there was anybody on this forum that had problems with thier bd kit that I can remember. In fact any problem that you hear of is from somebody saying "I know a guy", or "my brothers" kit didn't work.
Myself, and my buddy both ran the kit last year, and it did need some fuel tuning, and it needed a little additional weight in the clutch, but once dialed in it ran like a top.
I sold my bd turbo pro, only to buy another so I'm running my second one this year.
I did call and talk to Justin at Sibler, he was very thorough with me about his kit, very knowledgable about tuning, and putting out a quality kit at a great price. I was extremely close to pulling the trigger, in fact I have a 12 backup stocker that would be a perfect candidate for it.
Basically I like the ebc, and I like the fuel controller. They did the cold air intake, the aux injectors, and the intercooler. All of this is an improvment, and it will be a great setup.