Hey there. It sounds like the noise comes around when you are using the clutch which sounds to me like you may have an issue with your throwout bearing. The part on the vehicle may have been faulty and failed...
I'd go for the STI if I were you. And, like I've said many times--if you are getting a Subaru get a standard transmission. Their automatic transmissions stink. They are horrible. They wear out. They cost a fortune to fix....
If you have changed something in the system recently, that may be the cause. Otherwise, the fuel pump, and its wiring, needs to be checked; the problem is likely due to a faulty pump, or a short in the wiring,...
Things can change but you'll need to replace it and that is a real pain. On that vehicle, they are very popular. So, you can go to any good aftermarket parts place and get an aftermarket control arm (https://www.yourmechanic.com/parts/control-arm-assembly) with...
You must be a very good driver, because it's a 12-year-old Subaru and those are fast, little cars. Normally, those clutches are going to wear out a long time before that. It could easily be a throw-out bearing. If it...