1)Turbo kit was $
4800.00 On sale
2)Intercooler was $
1000.00 On sale
3)Greddy BOV (Type RS) $
199.00
4)Labor to weld in alum. flange for BOV $
40.00
5)Wire harness for E-Manager $
255.00 (Does not come with one.)
6)Boost Controller (Power Enterprise) $
348.00 On Sale
7)HKS TT $
80.00
8 )Fuel Pump (Walbro 255) $
100.00
9)Labor to install TT, Fuel Pump, Boost Controller and Dyno tune the car $
400.00 (still not done Dyno tunning the car.)
10)Misc. tools $
40.00
ADD another $
2000.00 +/- if you have the Turbo kit installed by a shop.
****Total with Dad and I doing the install of the Turbo kit was $7262.00
****Price if you have the kit installed by a shop $9262.00
PS............Oh yea, cant forget sales tax, a FEW Hundred $$$$$ just in Taxes.Add that to the totals above. $7700.00 +/- and $9700.00 +/- 
Im sure there is a few $ that are not in the total, but this will give you an idea what it cost to get a turbo system in a 350z.