i have 800rms subs andd when they hit hard, my car vibrates and it sounds good...but can it be bad for my car? like vibrate some nuts and bolts loose or something?
Nothing to worry about safety-wise....but over time, fasteners can become loose, causing miscellaneous squeaks and rattles which can be annoying. Periodically I have to tighten door panel, console, overhead console, and interior panel fasteners to keep the quiet ride when the music is off
100% Yes They Can Harm Your Car Your Hearing As Well But If You Want To Prevent That Try Dynamat Its Cheap Stops Car From Rattling And Gives You Big Db Increase Making Your System Louder.