So a rattle sounding sort of like an exhaust rattle started under the car a few weeks ago and I just now got the time to jack it up and investigate. The rattle is specifically at 4000 rpm and on throttle no where else.
I found what looks like some magnetic ball bearings and a 10mm (lol) socket stuck to the manifold after I dropped the skid plate. And ideas what these "bearings" could be from?
The car is a 15 BRZ with about 17k on the clock. Only mods are a perrin intake tube to delete the sound tube, oft stage 1 tune, and some fluids. I am the second owner and bought it with less that 5k on it. I am guessing it is something left over from the first owner. I know they had done some cosmetic mods to the car before returning it to stock when I bought it.
I just drove it after removing and the rattle is like 70% gone, but there is still a little something there, so I am going to have to drop the manifold and do some more investigating I guess.
http://imgur.com/a/FmjvWF5