Originally Posted by dlbrooks18
cool post! now turn up the boost in that Alpina B3
Alpina has already maxed out the stock turbo in the present iteration of their B3 Biturbo. They're running at 17.5 psi - if you use more boost, they'll be even further out of their efficiency range and will melt in a short period of time.
You can however optimize the exhaust system (catless downpipes) and install a meth injection - then you'll be probably at around 450hp (crank). Or you put in bigger turbos, then 500hp is easy to reach.