Ok so due 2 space constraints in my trunk opening I had I could not get my level 6 to fit (damn I'm pissed) so I call my boy heath over and of course it will fit in his so we install it in his car and right off the bat with no play time the level 6 dominated the level 5 (bare in mind up 2 this point the best subwoofer that I had ever heard was my level 5) I mean right off it was louder,lower and cleaner so all I can say is wow rusty you have a strait killer sub here and the reason for this topic is 2 gripe that it won't fit and 2 give user feedback about it if you can get 1 do yourself a favor and get it.