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Originally Posted by TGray5 Just curious...what are the different parameters between the N55 in an F30 and N55 in an F10?

Not too sure about the F30 to the F10. But from the E90/92 N55 to the F30/F10 N55 has a whole different ECU. So those dynos that you see on BMS' website for the stage 1 and stage 2 with or without DP are from the E9x N55 and not from any F30 or F10. These are proving a lot harder to get the huge gains that were seen with the N54s and older N55s. Just want to make sure everyone has a clear understanding of this tune before thinking they can gain 80-100hp on an F10.. Sorry OP but you gained 40-50 Max and that is taking into acount your catback exhaust as well.

Wow, I sound like a grouch. I' m really not grumpy, just don't like seeing people misinformed.
And I had the tune on my car for a couple months so I an not just talking out of my ass here.

Bottom line its great for a little kick in power. Way better than stock, but I am on a mission to find something better that gives me the power I miss from my E60.

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2012 535i M-Sport

Previous BMW's: 87' 528e / 04' 325i / 07' 335i / 08' 335i / 08' 535i