I'm pretty new to turbo charged vehicles and the noises they make. I'm at 7,000 miles on my 13 WRX and I've started noticing a chirp or squeak noise when I get into boost. Since it seems to occur before I let off the throttle, I was thinking this might be the wastegate I'm hearing? The noise may have been there since day 1, but I am just now noticing it.
Any thoughts or suggestions?