Quote:
Originally Posted by 1seriesFanatic
Thank you for your extremely unnecessary answer. I'm not interested in buying a 135i or else I would have said 135i not 128i nor would i have been in the 128i section. Instead I asked a very specific question.
128i vs 128i w/AA tune
that is all
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Anyone's answer would simply be just a guess. The AA Tune alone only adds a few hp. I don't expect more than .1s improvement. As others have mentioned, the AA tune along with the 3 stage intake manifold should add about 30hp at the crank and would improve acceleration in a measurable way. Maybe something like .3s, hard to say.