I run the comptech cold box and love it, it sounds almost completely stock, but with a more aggresive growl up high. As far as practicality and daily driving is concerned the ice box is the way to go. Comptech assures that is almost impossible to hydro-lock, and if you see it in person, you'll understand why, in addition, it's so much easier to clean it's crazy!!!!

In any case, I'd go with the ice box, it really is a heck of a lot more practical, especially if it rains, or there is a lot of standing water where you live.

Later!
Aj