Yes, if your doing it in steps, you can do it that way. Just make sure that your piping and intercooler holes are plugged until you install the SC.
I personally would do 5 and 6 at the same time, and tow it to a shop and have it tuned. Getting the ECU tuned to NA, then having it retuned to SC might get costly.
As far as the engine and how much PSI it will take....lots of rumors here. Rumor has it that the stock intake manifold can't hold a gastly amount of pressure although that has never been proven. In most cases the rods fail with a significant amount of PSI. I would be hesitant to push more than 15 psi through a stock bottom end.
However, your bottom end is brand new...........
But, I wouldn't risk it
I know the guy in florida (can't think of his name right now) was pushing 260rwhp on a stock block and head and had no issues although he didn't put many miles on the car and only had it running for a few weeks before an accident took the car off the road.
I will see what I can dig up as far as how much PSI he was running through the engine. I don't think your going to really have to worry about it especially if your only running 6psi through the engine.
Brashboy - I don't know anyone who is running it however I talked to them last week and I'm most likely going to pick one up in the very near future. But, i won't be able to give you a running report until February probably
