Nice writeup Manson. I have heard those subs installed in the Sierra and they sound brilliant. I had an option to pick them up at one point of time (If these are the same subs installed as a pair in a box). Amazing bass.
I remember when we bought the Zen, the 222 was everyone's delight at Milan subway and people would rush for that amp without a second thought. I felt very great about myself when we got a 444 instead of the 222 in my Zen in 2001-02. We have a come a long way ahead after that, all thanks to the ICE section on team-bhp.
Hope to see the pictures soon or I will be forced to give you the pictures from this link -
Pics (Hyderabad-Pune-Hyderabad in Red Cutie [Part 1])