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The stock exhaust is only loud at WOT, and yes it does sound beautiful. Other then that it's quiet.
Aftermarket exhaust are great, especially with gains like RPi, AA, and RR but to introduce drone into these cars is just a sin.
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2009 E92 M3 | Alpine White | Black Extended | Advan RS | Turner Test Pipes | Dinan Axle-Back | OETuning | Eibach Springs | UUC SSK | VRS Front Lip | VRS Type I Diffuser | Matte Black | RPi Scoops | MS Filter | Yokohama AD08 | F1 Pinnacle
Special Thanks: Gintani | OETuning | eAs |