It prolly is overpriced compared to if you assembled your own kit.
see what is included and price out everything individually
turbo
manifold
oil lines and water cooling
fmic
bov
wastegate
charge piping
and then rather than using vafc or safc
look into the grassroots tuning solutions such as uberdata, chrome, turbo-edit if your putting it on an obd-0 car.
you'll end up spending about half what the kit cost and have more knowledge about it and prollymake more power.