Conclusion: i have one of these in a 03 monte carlo ss and it is loud as hell. the only things i reccomend would be making sure you get enough power to it and dont run it at 5000 watts for more than a few in. i had mine at one ohm on an audiobahn a500spl and it blew in less than ten min. this sub hits the low notes like none other but it should only be run at 3000-4000 daily or it will blow quickly.
Conclusion: when you are talking about loud, this is the one to go with, I never owned one but heard one before, it was the loudest subs that I have heard so far at a local dealer, in a Hummer H2 running 2 of those with a warhorse amp. Damn, sound like crazy when I get into my own car now I felt that my Kikcer VX sounded like crap. Def, the best subs on earth.
Conclusion: i have 2 of these in a jeep wrangler with the kicker warhorse had to take out my back seats and wow i used to have a soft top on my jeep but these bad boys ripped that top in half best subs i ever heard or owned they are just crazy if you have the money dont go with any subs but these