New 2009 2010 BMW Z4 - ZPOST - View Single Post

Gunzaro · 02-19-2013, 02:44 AM

Impossible to be quieter. ESS stage 2 runs more boost therefore a greater volume of air is being pushed through = louder in my book. With the stock exhaust you probably won't hear much difference anyway.

02-19-2013, 02:44 AM	#3
Gunzaro First Lieutenant 37 Rep 378 Posts Drives: Speed Racer Join Date: Jan 2011 Location: In transit iTrader: (0)	Impossible to be quieter. ESS stage 2 runs more boost therefore a greater volume of air is being pushed through = louder in my book. With the stock exhaust you probably won't hear much difference anyway.
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