scorpion back box- who knows ?

[Highmast]

does anyone knows this back box. Seems good quality for a good price.
I just never hear it. If somebody have a link for a sound track and back of experience...

scorpion back box
http://pix.nofrag.com/c/1/a/3774acdcbb90c6fe385fd24e1c53d.jpg (http://pix.nofrag.com/c/1/a/3774acdcbb90c6fe385fd24e1c53d.html)

[s.mac]

OK for a Corsa but I wouldn't put one on a CSL, they are known to be very loud in the car (drone at low revs) not sure on the quality and weight ?

I would be surprised if you find a sound clip with one on a CSL