Originally Posted by 1M/Mopar
I see the reason to have the N54 is because of the 335hp in the 1M compared to the 316hp in the M135i..
Alternative, is to tune the N55 to more than 340hp as a gap-filler between 335i/435i and M3/M4
The 1M has 340HP and the M135i 320HP (EU), 20HP difference
IRL the M135i is just as fast as the 1M minus the bends(limited slip diff and more track focussed chassis)
The N55 is pretty well capable of >400HP as well.
So let's indeed move on with the N55.