Hey i recently lowered my car 2 inches and since then I have noticed an annoying knockin/rattle in the rear of the car. I also haven't gotten it aligned as yet. I put on lowering springs but havent changed the shocks. Some say it could be that the shocks cant manage the pressure. But the car still drives great, just has the annoying noise. Although, when there is weight in the car i don't hear the noise. Its an 05 coupe. Anyone have any ideas what this could be?