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Old 01-28-2013, 03:32 AM
PeterC4 PeterC4 is online now
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Join Date: Mar 2011
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Mein Auto: 535xi,328xiC
Quote:
Originally Posted by BigDeep1 View Post
I guess my thread turned into a BMS tune infomercial . The point of this thread is not to get into a debate about TRUE power gains with piggyback tunes. I simply want to know how the power gains are had with the N55HP.


From my past experience, these slight power gains were often had from tweaked intake and exhaust manifolds. Of course with FI (forced induction) vehicles, all it takes is a little programming and or an increase in boost.
I would think it's the latter since it is very economical to do from the factory. But it would be interesting to get the details. Maybe it's similar to the 335 BMW performance upgrades from the dealer.
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