of getting a 12" sub and small amp and another amp of the same and some 6by9's. but i dont wanna lose alot of performance i took my 2 12's and amp out of my escort the other day and they are seriously heavy, then i went out for a drive and my car did actually feel quicker. but that would weigh more than what im after. it would be a while as i would need to save some extra cash but would that effect the performance alot?