Always drive with a 100 mph tailwind....
Seriously, with naturally-aspirated BMWs, there`s not much you can do to squeeze any more out of it. Your engine puts out 170 HP, and that`s all it`s gonna give you no matter *what* you do to it.
We have a saying around here:
"Learn to love what you got, or buy a faster car"
THAT`S reality for BMW owners.
The road goes ever onward....
*Please support the Disabled American Veterans*
When faced with choosing between two evils, always go with the one you`ve never tried before....