What is the degree of difficulty to port the wastegate on an S4 TII? Is it a high precision job? What are the exact tools needed........dremel tool? I 'd like to port mine, but, if there is more to it than just taking out the dremel and grinding, then, forget it, i'll leave it to a skillfull person.

 

its not that hard

http://fc3spro.com/TECH/HOWTO/ZWG/zwg.html