Nice and sweet. Not much droning as heard from your video. My Hamann is nosier than yours and droning at low rpm.
How's the performance in terms of low end torque? Mine has affected a bit going up hill. Switching to sport mode (higher rpm) on the other hand has no problem.
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2011 F10 528i Black Sapphire / Oyster Black
2000 E46 325ci Cabrio Titanium Silver / Black - retired
1997 E36/7 Z3 Montreal Blue / Black - retired
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