He was right. There are NO aftermarket turbos that are 100% bolt-on. Only the stock Garrett T3 and KKK K26 turbos that came on these cars are a direct fit.

Also, there is no easy intercooler made for them. Everything is pretty cramped and installing an efficient one is a very difficult task.

The stock setting of 13psi is plenty for stock settings and about 22psi is about the max the turbo is good for. More boost alone will NOT make more power.