Originally Posted by samchoi604
Unfortunately, the N55 is not much of an upgrade to the twin turbo N54.
IMO that's why they threw a few kitchen sink techs into the N55 that weren't really necessary. If the N55 had dropped a turbocharger without
adding twin scroll and Valvetronic it probably would have dropped off this and similar lists, even if the horsepower had come out the same (which is certainly possible, given the strength of aftermarket tunes and the general consensus that output from these blocks is conservatively rated).
BMW is an engine company that also makes cars. There's a lot of company image under that hood.
2012 135i convertible, DCT, Black/Beige, HK, Prem, M sport, no nav.