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      01-13-2014, 12:19 PM   #4
alextremo
Captain
United_States
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Drives: F10 550i
Join Date: Sep 2008
Location: USA

iTrader: (5)

I agree, have been holding off since another member posted before and after dyno showing loss of HP and TQ a couple years back.

The only ones showing gains sith downpipes installed are AA, on their dyno.
Appreciate 0