Thread: JB+ 75% review
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      04-11-2009, 01:40 PM   #20
TwinTurboXI
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Drives: 2011 135i
Join Date: Mar 2008
Location: Pittsburgh

iTrader: (12)

I have never heard a "pop" from my car. However, when letting off the gas pedal i do get a burble or small backfire, but thats been there since day 1