Post by
Perrenial Badass »
https://forums.nicoclub.com/perrenial-badass-u98460.html
Sat Feb 20, 2010 6:58 am
You can build a MBC for like $10 worth of parts from Home Depot, but if you can't go there and figure it out for yourself then it would probably be wise to just spend the $40 for an aftermarket unit. I have a stock wastegate modified so I can adjust the boost.
But to answer your question, no there isn't really a smart/safe way to modify the boost without... well, modifying.