Ditto that sentiment. While it's perhaps a nice introduction to those new to tuning, it is no more than an introduction. Totally lacking depth and plenty of careless errors.
Silicon hoses? (Silicone, VERY different stuff.) 15% reduction pulley increases the boost
by 15psi? (Try to 15psi, or perhaps 15%.) Is the auto tranny on the S really a CVT?
Lots of pretty pictures but, honestly, if you have found this forum, you don't need this book.