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Old 09-14-2013, 08:50 PM
Mr.X5_3.0si-retired Mr.X5_3.0si-retired is offline
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Join Date: Mar 2013
Location: Chwk
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I honestly like the extra bit of engine sound from them when u put ur foot down
I had an AFE one on my 3series and although I'm sure there wasn't much, if any HP increase it sounded great
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