Most would say no, but I have upgraded mine and I like the difference
I have -
2x Hertz 165 Composites in the front
2x Hertz 165 Coaxial in the back
1x JL Amp for them
Standard Bose Sub & Amp
I had my dash out this afternoon to hard wire my Pure Highway so I took a few pics....
First 2 show what I mean about mounting the unit independently of the dash...
As you can see mine is held in with 2 bolts at the top and 2 bolts at the bottom, so I can take the dash off without moving the unit (this is handy)
Here are some pics of what I did with the fascia, sounds like BM did exactly the same (copycat )
As you can see it fits nice and flush, well as flush as you can get on a slightly slanted dash
I keep meaning to take the fascia out and spray it gloss black
Hope that is some help to you