Hello all. I have a lowered 09 2.5s sedan. It's lowered on eibach prokits and on 18 inch g35 7 spoke coupe wheels. I installed the springs myself on my stock shocks. I currently have 55k miles.
When I go over small bumps, especially where the road level drops down a little such as uneven roads in a construction area, my car makes a weird noise I don't think is normal. It's hard to describe the noise so I used a video. As soon as the tires go down the bumps there's a hollow sounding noise coming from the front end. In the video you hear it as I'm coming up to the light and then as soon as I finish making the right turn and go down the other bump. The other small rattling between is just something in my back seat. It almost sounds like if you took a sheet of thin metal and "waved" it for a second
Any idea what this is or is this normal. Will someone with experience or a similar set up please chime in. Thanks!
http://youtu.be/7BSjMM2qjX8