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Old 01-27-2013, 09:01 PM
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BigDeep1 BigDeep1 is offline
Location: Irving, TX
Join Date: May 2012
Posts: 889
Mein Auto: 2011 535i Sport
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.

2011 535i Sport (Prem 1, 2)
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