sounds like its rattling... please help
 

i just put in new struts and springs and bushings. now when i hit a good bump it sounds like something is rattling everything is as tight as can be but i cant figure it out please help.

Really tinny, metallic rattling is usually the heat shields on the exhaust. Suspension problems sound more like clunks and thuds.

That's what it is. When I hit a bump I hear dunk dunk dunk. But I put in all new struts and springs. I have lowering springs in it. Civic eg

I know its not the exhaust I just replaced all that too. Cat all the way back.

I don't know much about lowering, but I have heard that stock struts with lowering springs will bottom out internally. This ruins the struts quickly.