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I am using a Cobb Tuner and I get the same hesitation at higher speeds/gear. It's tuned with LT sport. I'm also curious as to what it could be.
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 TiAg N54 xDrive M-Sport 6MT 2010 I:I N54 I:I CPO-2016
335i SOLD
TMPS Sensor 09+ For Sale
x1 Seat Belt For Sale |