Originally Posted by bdaddylo
I highly doubt the M2 will have more power than our 1Ms. It's harder to extract responsive power from the N55 due to its valvetronic and single turbo configuration. I think they will go the weight reduction route to increase performance. It'll be interesting wait to see what happens.
I know that N55 is not that tuneable like the N54s but it already delivers a 320hp in M135i and a light tune or changing a few parts like exhaust and/or FMIC and intake should be enough to put an extra 30 something hp. That is needed for face saving purposes, cause it just can't be exactly the same of M135i engine or the same or less power of our 1M. However, since our engine actually produces a bit more hp and quite more torque than stated, I also doubt that in real data there will be much of a difference and it is even probable that a future "stock 1M vs. stock M2 dyno comparison" can cause a scandal!