I just picked up a W7 wondering if i will have any major problems in my cobalt ss/sc like a window blowing out or major rattling issues. My door handles already rattle with the stock system so is there anyway i can fix that and does anyone think its a bad idea to put a w7 in my car at this point?

 

no, you wont blow out a window, yes, you will have major rattling issues

 

Buy lots of Dynamat and sound dampening. I also suggest when you have your carpet pulled up to Dynamat the trunk to stuff all the open holes with pillow stuffing - it helps cut back some vibrations.

You will still have lots of rattles, no matter what you actually do. To add what Tiny said - you wont mess up your window it self, but you run a good chance or blowing out the window seals. I've seen the 1 12" MTX 9500 destroy the window seal (on the front window).

 

Yea well honestly im not going to be using the sub to its full potential. Im not installing a h/u and im just hooking up an amp to the sub wires in the back of my trunk using a lineout converter controlling its output by the amp. I just dont want major issues that ill regret in the future.

 

dynamat is a must.. honestly.. this sub is to much for the cobalt. i reccomend getting a sub enclosur box.. its already got the subs and amp in a nice box.. and it looks awsome..

http://www.alpine-usa.com/en/product...hp?model=PLV-7


i have seen this cheaper... for like 500 bucks on other websites.. and it sounds awsome.

 

Why would you pay for a W7 and than not get a h/u?? or did u already have it from before?

 

i have a 10W7 in my Cobalt SS/SC and it is in a JL audio power wedge box. its loud.... and i will need to put some sound deadening in it..