Originally Posted by thegeneral101
Honest question...how is this different from a tuned N54 engine? And please note, I'm currently in an M3 and will probably get this one in a few years once the kinks are worked out. I'm just asking this because I came from a tuned 335i back in 2007 and loved the torque....but think this will feel pretty much the same. The weight advantage will be awesome though.
Dont know structural difference, but new engine is featuring an eletric turbo to keep other 2 normal turbos consistantly working even on low rpm.