Originally Posted by Questforpower
It is consistently getting worked on since there is more and more of DI / Turbo cars... I am willing to put money on it that most people will sacrifice a little bit of reliability for improved torque down low / fuel efficiency and overall better performance because once again the old N52 was more antiquated than drum brakes.
I will take you up on your offer. The gap in reliability is enormous, if my experience has anything to do with it. Agreed that the newer engine will have better number when new, but once carbon starts to build up, injectors fail, HPFP fails, cats clog up, I don't think performance gap will remain. My 330i was down to 247bhp when last on the dyno.