dont know why you would want to buy a new turbo to run 7-8psi.....run the stock turbo with stock boost controller with a decent exhaust, split dump pip,hiflow cat, 3" system, pod should get you to around 170kw.....raise boost to say 10psi which is still safe and you will have what u are looking for......this is alot cheaper then upgrading ur turbo, cause u would have to get an exhaust anyway....my 2 cents....