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      02-13-2012, 10:31 AM   #15
frankzlin79
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Drives: 2018 M3
Join Date: Oct 2008
Location: Houston, Texas

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Well we can eliminate the AA Green Filter as the culprit, since all air filters have the same performance gains (zero lol). So it's gotta be your Turner test pipe or Evolve tune. It'd be interesting to see your chart once you go with the ESS tune.