i'm about to lease an 07 coupe. i wanna get a sound system, two 12" JL subs.

I was wondering how bad is the rattling with subs in there if it rattles at all? i really don't wanna dynamat the car since its a lease.

 

My $0.02 cents, even though I don't have subs...
The car has rattles already (Behind the dash, and the rearview mirror). I can only imagine that adding subs would make it worse, and possibly rattle other areas of the car.

 

IMO, i think it would add more rattles after a certain amount of time, no matter what car it is. The continous vibrations from subs will eventually loosen panels/cup holders/small switches/glove box, etc.

I've had quite a system in all my previous vehicles in the past, rattling was just something i noticed as the car ages and the prolong exposure to vibrations.

 

^+1

 

It will definitely rattle with 2 12" JLs and no sound-deadening. I was chasing some rattles after I dynamatted my trunk and trunklid with just a 10w6.

 

I drive myself nuts looking for cures for these rattles caused by my sub. I've even used expanding foam to fill in gaps between metals. More edead is on the way