Interpol

There is this rattle coming from the front suspension, mostly the right side. It happens whenever it goes over a bump. A speed bump is too large, more like a patched spot or crack in the road will do it. It also creeks on the right side when I jacked up my RX-8 to check it out.

I put the car up and took the front right wheel off and check that everything was tightened. I tightened the nuts on the thing the sway bar attaches to and the top one wouldn't tighten all the way. Not sure if it's supposed to be like that.

I have Tanabe Sustec Pro 5 coilovers with TEAS dampener controller, Tanabe Sustec Pro sway bars, and Greddy strut braces.

Any ideas as to what it is?

expo1

You check the grease on the sway bars??
https://www.rx8club.com/series-i-trouble-shooting-95/something-owners-aftermarket-swaybars-might-want-lookout-65304/

staticlag

sounds like the swaybar is loose, did you torque everything to spec?

If not I would buy a torque wrench, torque everything to spec and see what happens.