08-12-2011, 07:44 PM
Should be on full boost just after 2k. Theyre really not that laggy at all, just more laggy than a GT15. Imo go for the swap, my friend has just done the exact same. As for boost, upto around 23/24 seems reliable, they will boost upto ~32 though, although dont expect them to last more than about 6 months if you run them that high and drive them hard.