Yea, it's awesome lol. When you let off the gas its almost like a blow off valve effect and it whistles also. When your at low rpms and you floor it you should be able to hear the turbo spool up, it sounds so sick. I have the performance exhaust on mine so the sound is emphasized even more and I love it.
2011 335xi Msport
Jb3, BMW Performance Exhaust, BMS Performance Intake, BMS Chargepipe, AR 4" DP
Black Kidneys, 35% Tint, 20% Tail light Tint, Blacked out front reflectors, Painted Black Msport Rims