more boost and stock redline if you're at all MPG aware, pissing fuel is fast at higher revs is easy
not trying to win races so why beat up the motor at 8000k+?
blast to factory redline faster, perfect, and if I take my time and can rev it lower overall with more HP and TQ, that will be as MPG gentle as it gets, and long life friendly
not sold that subaru boxer valve train @
9k revs = porsche's, that IS why one costs more