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boost82 · 09-12-2014, 07:57 AM

Generally speaking the only exhaust mod that is going to make a difference in power is the downpipe. The cats are what restricts power. Everything else is just sound

09-12-2014, 07:57 AM	#2
boost82 Private First Class 34 Rep 171 Posts Drives: M235i Join Date: Aug 2014 Location: New York iTrader: (0)	Generally speaking the only exhaust mod that is going to make a difference in power is the downpipe. The cats are what restricts power. Everything else is just sound
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