x6 50i ESS Chip or Activeautowerke chip ??
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01-24-2013, 10:03 PM
Join Date: Aug 2012
Oh. I used to have their JB4 tune for N54 engine. Their N54 tune is awesome.
But for N63 their output way less then the others tunes.
I know it cost a lot cheaper. But i want some real hp and tq....
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