The Sub actually is excellent. I have 400W RMS going into it and the specs on the sub allows for a small enclosed enclosure. Not all subs allow for small enclosures. The sub is enough to shake the mirrors and rattle the spoiler. I ended using some dynamat on the inside of the spoiler and the body right behind the sub.

Here are the specs for the Kicker sub 8" L5
Min Rec Sealed Box Volume (CU. FT., Liters).33, 9.4Max Rec Sealed Box Volume (CU. FT., Liters).75, 21.2
Min Sealed Box = .33 cubic feet
Max Sealed Box = .75 cubic feet

As for the bezel I know it is expensive but I do have to argue it. I do not have any ties to the seller but I will have to admit that it is very good quality. It is made of ABS plastic and its much thicker and harder to the touch than I expected. I thought it would be flimsy but I was wrong and it looks very stock. The stock look was necessary for me since I sometimes park the car in less desirable areas.

Almost everyone who got in the car did not notice that the radio was not stock. Funny how everyone comments on how good the ipod integration was on the BMW. LOL.

The second knob has a rotary switch attached behind it and its connected to switch the headrest monitor on/off.
Min Rec Sealed Box Volume (CU. FT., Liters).33, 9.4Max Rec Sealed Box Volume (CU. FT., Liters).75, 21.2