Stealth 993

Did you check the tier pressure? 993's are very sensitive to tire pressure. Yea, it sounds dumb & obvious, but it does cause that problem.

flyingchappy

Don, thanks. Excuse my ignorance, but which bushings are your referring to?

flyingchappy

I am very religious with the tire pressure, I played with lowering and raising it slightly, right now it's 36, 44, front back respectively.

Stealth 993

Then check the bushings, & maybe go out for a fun drive, & hit the brakes hard a few times, engaging ABS, see if that cleans up the brakes & makes it go away.

Uber 911

"The car was last driven by the PO maybe 3 years ago"

So how many miles or usage has the car done/had in the last 3 years?

NP993

If the car sat for three years, you very well might have pad deposits or corrosion on the rotors. I would do a few hard stops from high-speed -- get the brakes warmed up and scrub those rotors off. If that doesn't work, it could be the a-arm bushings, and it could also be the case that the rotors need to be professionally cleaned up.