Bmw e90 325i 08 with the 3.0 l n53 engine.
Leebman24.de were the ones with lowest price. And i recomend them strongly.
It is really quiet inside the car and keeps a low profile when not revving the engine too hard. I am satisfied with it is all I can say.
If you want another video of the sound inside the cabin or a drive by, comment.
