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TAREK69 · 03-27-2010, 08:55 AM

Is a 60 bhp gain from only the exhaust system realistic though? I was told it wont matter what system you put on, if you dont do an engine remaping to custom the exhaust you wont get any extra horsepower? does anyone know anything about that?

03-27-2010, 08:55 AM	#114
TAREK69 New Member 2 Rep 26 Posts Drives: 2009 750LI, 2009 X5 3.0si, X5M Join Date: Jan 2010 Location: DAMASCUS, SYRIA iTrader: (0)	Is a 60 bhp gain from only the exhaust system realistic though? I was told it wont matter what system you put on, if you dont do an engine remaping to custom the exhaust you wont get any extra horsepower? does anyone know anything about that?
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