Yea first investment will be a turbo timer , boost gauge , intercooler (dunno) and it should be good and a full tune up !

 

I dont think getting a FMIC is needed to make a TII reliable, it might make daily driving more difficult since there should be more boost lag from all the extra piping & increased IC size

otherwise I agree with mostly everything people have recommended

Just remember the 2/3 part recipe,
When you mod your car, you can only choose 2 of 3 things:
1) Reliability
2) Cheap
3) Fast

 

I choose reliability and fast..... Do I win ? WOOHOO !!

 

Lots of bills.

 

Got 4k to spare my friend