so after hearing clips and snippets of different ideas, i decided to see if anyone has any ideas on this.

ever since i got my car, i heard a noise out of the rear passenger area. if i accelerated/deaccelerated, it would make noises. usually on acc. it would sound like something flexing, and with slowing down it wouldnt do anything, unless hard enough it would make a loud pop. i asked them at the dealer, and what the said seems weird.
i have a problem, which im aware of. i dont know why, but currently i have aftermarket camber arms on the rear wheels. however, on the passenger side, the camber bolt tabs have been ground off, so a camber bolt has nothing to hold it in place on the sides, and had a regular bolt in it.



they said no matter how tight you make it, it will always get loose and cause problems. they tightened it, and the noise seems to be gone, unless i hit the brakes hard, then it makes a loud pop. before they tightened it, if i put weight back there, like sat on it or whatever, it would make the noise a little.

ps- i was in an autocross, and whenever i did the stop it made the noise, loud enough to be heard all over the parking lot. i was told from the outside it looks like the tire shifted in the well.

sways are stock btw.
hopefully someone will have an idea?

 

so i found that that bolt is the correct camber bolt, just turned backwards. gonna lock that, and then just use the arms for adjustment. still hear noise tho :/